Sigma rules for Killnet
218 rules · scoped to actor · back to Killnet
Direct rules mention this entity in their title or description. Related rules cover the techniques this entity is known to use.
title: HackTool - BabyShark Agent Default URL Pattern
id: 304810ed-8853-437f-9e36-c4975c3dfd7e
status: test
description: Detects Baby Shark C2 Framework default communication patterns
references:
- https://nasbench.medium.com/understanding-detecting-c2-frameworks-babyshark-641be4595845
author: Florian Roth (Nextron Systems)
date: 2021-06-09
modified: 2024-02-15
tags:
- attack.command-and-control
- attack.t1071.001
logsource:
category: proxy
detection:
selection:
c-uri|contains: 'momyshark\?key='
condition: selection
falsepositives:
- Unlikely
level: critical
title: PwnDrp Access
id: 2b1ee7e4-89b6-4739-b7bb-b811b6607e5e
status: test
description: Detects downloads from PwnDrp web servers developed for red team testing and most likely also used for criminal activity
references:
- https://breakdev.org/pwndrop/
author: Florian Roth (Nextron Systems)
date: 2020-04-15
modified: 2021-11-27
tags:
- attack.command-and-control
- attack.t1071.001
- attack.t1102.001
- attack.t1102.003
logsource:
category: proxy
detection:
selection:
c-uri|contains: '/pwndrop/'
condition: selection
falsepositives:
- Unknown
level: critical
title: Win Susp Computer Name Containing Samtheadmin
id: 39698b3f-da92-4bc6-bfb5-645a98386e45
status: test
description: Detects suspicious computer name samtheadmin-{1..100}$ generated by hacktool
references:
- https://twitter.com/malmoeb/status/1511760068743766026
- https://github.com/helloexp/0day/blob/614227a7b9beb0e91e7e2c6a5e532e6f7a8e883c/00-CVE_EXP/CVE-2021-42287/sam-the-admin/sam_the_admin.py
author: elhoim
date: 2022-09-09
modified: 2023-01-04
tags:
- attack.initial-access
- cve.2021-42278
- cve.2021-42287
- attack.persistence
- attack.privilege-escalation
- attack.stealth
- attack.t1078
logsource:
service: security
product: windows
detection:
# Not adding an EventID on purpose to try to match on any event in security (including use of account), not just 4741 (computer account created)
selection1:
SamAccountName|startswith: 'SAMTHEADMIN-'
SamAccountName|endswith: '$'
selection2:
TargetUserName|startswith: 'SAMTHEADMIN-'
TargetUserName|endswith: '$'
condition: 1 of selection*
falsepositives:
- Unknown
level: critical
title: Audit CVE Event
id: 48d91a3a-2363-43ba-a456-ca71ac3da5c2
status: test
description: |
Detects events generated by user-mode applications when they call the CveEventWrite API when a known vulnerability is trying to be exploited.
MS started using this log in Jan. 2020 with CVE-2020-0601 (a Windows CryptoAPI vulnerability.
Unfortunately, that is about the only instance of CVEs being written to this log.
references:
- https://twitter.com/VM_vivisector/status/1217190929330655232
- https://twitter.com/DidierStevens/status/1217533958096924676
- https://twitter.com/FlemmingRiis/status/1217147415482060800
- https://www.youtube.com/watch?v=ebmW42YYveI # "CVEs in Windows Event Logs? What You Need to Know" by 13Cubed.
- https://nullsec.us/windows-event-log-audit-cve/
author: Florian Roth (Nextron Systems), Zach Mathis
date: 2020-01-15
modified: 2022-10-22
tags:
- attack.execution
- attack.stealth
- attack.t1203
- attack.privilege-escalation
- attack.t1068
- attack.t1211
- attack.credential-access
- attack.t1212
- attack.lateral-movement
- attack.t1210
- attack.impact
- attack.t1499.004
logsource:
product: windows
service: application
detection:
selection:
Provider_Name:
- 'Microsoft-Windows-Audit-CVE'
- 'Audit-CVE'
EventID: 1
condition: selection
falsepositives:
- Unknown
level: critical
title: HackTool - PurpleSharp Execution
id: ff23ffbc-3378-435e-992f-0624dcf93ab4
status: test
description: Detects the execution of the PurpleSharp adversary simulation tool
references:
- https://github.com/mvelazc0/PurpleSharp
author: Florian Roth (Nextron Systems)
date: 2021-06-18
modified: 2023-02-05
tags:
- attack.t1587
- attack.resource-development
logsource:
category: process_creation
product: windows
detection:
selection_img:
- Image|contains: '\purplesharp'
- OriginalFileName: 'PurpleSharp.exe'
selection_cli:
CommandLine|contains:
- 'xyz123456.exe'
- 'PurpleSharp'
condition: 1 of selection_*
falsepositives:
- Unlikely
level: critical
title: ProxyLogon MSExchange OabVirtualDirectory
id: 550d3350-bb8a-4ff3-9533-2ba533f4a1c0
status: test
description: Detects specific patterns found after a successful ProxyLogon exploitation in relation to a Commandlet invocation of Set-OabVirtualDirectory
references:
- https://bi-zone.medium.com/hunting-down-ms-exchange-attacks-part-1-proxylogon-cve-2021-26855-26858-27065-26857-6e885c5f197c
author: Florian Roth (Nextron Systems)
date: 2021-08-09
modified: 2023-01-23
tags:
- attack.t1587.001
- attack.resource-development
logsource:
product: windows
service: msexchange-management
detection:
keywords_cmdlet:
'|all':
- 'OabVirtualDirectory'
- ' -ExternalUrl '
keywords_params:
- 'eval(request'
- 'http://f/<script'
- '"unsafe"};'
- 'function Page_Load()'
condition: keywords_cmdlet and keywords_params
falsepositives:
- Unlikely
level: critical
title: Hacktool Execution - Imphash
id: 24e3e58a-646b-4b50-adef-02ef935b9fc8
status: test
description: Detects the execution of different Windows based hacktools via their import hash (imphash) even if the files have been renamed
references:
- Internal Research
author: Florian Roth (Nextron Systems)
date: 2022-03-04
modified: 2024-11-23
tags:
- attack.credential-access
- attack.resource-development
- attack.t1588.002
- attack.t1003
logsource:
category: process_creation
product: windows
detection:
selection:
Hashes|contains: # Sysmon field hashes contains all types
- IMPHASH=BCCA3C247B619DCD13C8CDFF5F123932 # PetitPotam
- IMPHASH=3A19059BD7688CB88E70005F18EFC439 # PetitPotam
- IMPHASH=bf6223a49e45d99094406777eb6004ba # PetitPotam
- IMPHASH=23867A89C2B8FC733BE6CF5EF902F2D1 # JuicyPotato
- IMPHASH=A37FF327F8D48E8A4D2F757E1B6E70BC # JuicyPotato
- IMPHASH=F9A28C458284584A93B14216308D31BD # JuicyPotatoNG
- IMPHASH=6118619783FC175BC7EBECFF0769B46E # RoguePotato
- IMPHASH=959A83047E80AB68B368FDB3F4C6E4EA # RoguePotato
- IMPHASH=563233BFA169ACC7892451F71AD5850A # RoguePotato
- IMPHASH=87575CB7A0E0700EB37F2E3668671A08 # RoguePotato
- IMPHASH=13F08707F759AF6003837A150A371BA1 # Pwdump
- IMPHASH=1781F06048A7E58B323F0B9259BE798B # Pwdump
- IMPHASH=233F85F2D4BC9D6521A6CAAE11A1E7F5 # Pwdump
- IMPHASH=24AF2584CBF4D60BBE5C6D1B31B3BE6D # Pwdump
- IMPHASH=632969DDF6DBF4E0F53424B75E4B91F2 # Pwdump
- IMPHASH=713C29B396B907ED71A72482759ED757 # Pwdump
- IMPHASH=749A7BB1F0B4C4455949C0B2BF7F9E9F # Pwdump
- IMPHASH=8628B2608957A6B0C6330AC3DE28CE2E # Pwdump
- IMPHASH=8B114550386E31895DFAB371E741123D # Pwdump
- IMPHASH=94CB940A1A6B65BED4D5A8F849CE9793 # PwDumpX
- IMPHASH=9D68781980370E00E0BD939EE5E6C141 # Pwdump
- IMPHASH=B18A1401FF8F444056D29450FBC0A6CE # Pwdump
- IMPHASH=CB567F9498452721D77A451374955F5F # Pwdump
- IMPHASH=730073214094CD328547BF1F72289752 # Htran
- IMPHASH=17B461A082950FC6332228572138B80C # Cobalt Strike beacons
- IMPHASH=DC25EE78E2EF4D36FAA0BADF1E7461C9 # Cobalt Strike beacons
- IMPHASH=819B19D53CA6736448F9325A85736792 # Cobalt Strike beacons
- IMPHASH=829DA329CE140D873B4A8BDE2CBFAA7E # Cobalt Strike beacons
- IMPHASH=C547F2E66061A8DFFB6F5A3FF63C0A74 # PPLDump
- IMPHASH=0588081AB0E63BA785938467E1B10CCA # PPLDump
- IMPHASH=0D9EC08BAC6C07D9987DFD0F1506587C # NanoDump
- IMPHASH=BC129092B71C89B4D4C8CDF8EA590B29 # NanoDump
- IMPHASH=4DA924CF622D039D58BCE71CDF05D242 # NanoDump
- IMPHASH=E7A3A5C377E2D29324093377D7DB1C66 # NanoDump
- IMPHASH=9A9DBEC5C62F0380B4FA5FD31DEFFEDF # NanoDump
- IMPHASH=AF8A3976AD71E5D5FDFB67DDB8DADFCE # NanoDump
- IMPHASH=0C477898BBF137BBD6F2A54E3B805FF4 # NanoDump
- IMPHASH=0CA9F02B537BCEA20D4EA5EB1A9FE338 # NanoDump
- IMPHASH=3AB3655E5A14D4EEFC547F4781BF7F9E # NanoDump
- IMPHASH=E6F9D5152DA699934B30DAAB206471F6 # NanoDump
- IMPHASH=3AD59991CCF1D67339B319B15A41B35D # NanoDump
- IMPHASH=FFDD59E0318B85A3E480874D9796D872 # NanoDump
- IMPHASH=0CF479628D7CC1EA25EC7998A92F5051 # NanoDump
- IMPHASH=07A2D4DCBD6CB2C6A45E6B101F0B6D51 # NanoDump
- IMPHASH=D6D0F80386E1380D05CB78E871BC72B1 # NanoDump
- IMPHASH=38D9E015591BBFD4929E0D0F47FA0055 # HandleKatz
- IMPHASH=0E2216679CA6E1094D63322E3412D650 # HandleKatz
- IMPHASH=ADA161BF41B8E5E9132858CB54CAB5FB # DripLoader
- IMPHASH=2A1BC4913CD5ECB0434DF07CB675B798 # DripLoader
- IMPHASH=11083E75553BAAE21DC89CE8F9A195E4 # DripLoader
- IMPHASH=A23D29C9E566F2FA8FFBB79267F5DF80 # DripLoader
- IMPHASH=4A07F944A83E8A7C2525EFA35DD30E2F # CreateMiniDump
- IMPHASH=767637C23BB42CD5D7397CF58B0BE688 # UACMe Akagi
- IMPHASH=14C4E4C72BA075E9069EE67F39188AD8 # UACMe Akagi
- IMPHASH=3C782813D4AFCE07BBFC5A9772ACDBDC # UACMe Akagi
- IMPHASH=7D010C6BB6A3726F327F7E239166D127 # UACMe Akagi
- IMPHASH=89159BA4DD04E4CE5559F132A9964EB3 # UACMe Akagi
- IMPHASH=6F33F4A5FC42B8CEC7314947BD13F30F # UACMe Akagi
- IMPHASH=5834ED4291BDEB928270428EBBAF7604 # UACMe Akagi
- IMPHASH=5A8A8A43F25485E7EE1B201EDCBC7A38 # UACMe Akagi
- IMPHASH=DC7D30B90B2D8ABF664FBED2B1B59894 # UACMe Akagi
- IMPHASH=41923EA1F824FE63EA5BEB84DB7A3E74 # UACMe Akagi
- IMPHASH=3DE09703C8E79ED2CA3F01074719906B # UACMe Akagi
- IMPHASH=A53A02B997935FD8EEDCB5F7ABAB9B9F # WCE
- IMPHASH=E96A73C7BF33A464C510EDE582318BF2 # WCE
- IMPHASH=32089B8851BBF8BC2D014E9F37288C83 # Sliver Stagers
- IMPHASH=09D278F9DE118EF09163C6140255C690 # Dumpert
- IMPHASH=03866661686829d806989e2fc5a72606 # Dumpert
- IMPHASH=e57401fbdadcd4571ff385ab82bd5d6d # Dumpert
- IMPHASH=84B763C45C0E4A3E7CA5548C710DB4EE # SysmonEnte
- IMPHASH=19584675D94829987952432E018D5056 # SysmonQuiet
- IMPHASH=330768A4F172E10ACB6287B87289D83B # ShaprEvtMute Hook
- IMPHASH=885C99CCFBE77D1CBFCB9C4E7C1A3313 # Forkatz
- IMPHASH=22A22BC9E4E0D2F189F1EA01748816AC # PPLKiller
- IMPHASH=7FA30E6BB7E8E8A69155636E50BF1B28 # PPLKiller
- IMPHASH=96DF3A3731912449521F6F8D183279B1 # Backstab
- IMPHASH=7E6CF3FF4576581271AC8A313B2AAB46 # Backstab
- IMPHASH=51791678F351C03A0EB4E2A7B05C6E17 # Backstab
- IMPHASH=25CE42B079282632708FC846129E98A5 # Forensia
- IMPHASH=021BCCA20BA3381B11BDDE26B4E62F20 # EDRSandBlast
- IMPHASH=59223B5F52D8799D38E0754855CBDF42 # EDRSandBlast
- IMPHASH=81E75D8F1D276C156653D3D8813E4A43 # EDRSandBlast
- IMPHASH=17244E8B6B8227E57FE709CCAD421420 # EDRSandBlast
- IMPHASH=5B76DA3ACDEDC8A5CDF23A798B5936B4 # EDRSandBlast
- IMPHASH=CB2B65BB77D995CC1C0E5DF1C860133C # EDRSandBlast
- IMPHASH=40445337761D80CF465136FAFB1F63E6 # EDRSandBlast
- IMPHASH=8A790F401B29FA87BC1E56F7272B3AA6 # EDRSilencer
- IMPHASH=B50199E952C875241B9CE06C971CE3C1 # EventLogCrasher
condition: selection
falsepositives:
- Legitimate use of one of these tools
level: critical
title: HackTool - SILENTTRINITY Stager Execution
id: 03552375-cc2c-4883-bbe4-7958d5a980be
related:
- id: 75c505b1-711d-4f68-a357-8c3fe37dbf2d # DLL Load
type: derived
status: test
description: Detects SILENTTRINITY stager use via PE metadata
references:
- https://github.com/byt3bl33d3r/SILENTTRINITY
author: Aleksey Potapov, oscd.community
date: 2019-10-22
modified: 2023-02-13
tags:
- attack.command-and-control
- attack.t1071
logsource:
category: process_creation
product: windows
detection:
selection:
Description|contains: 'st2stager'
condition: selection
falsepositives:
- Unlikely
level: high
title: HackTool - SILENTTRINITY Stager DLL Load
id: 75c505b1-711d-4f68-a357-8c3fe37dbf2d
related:
- id: 03552375-cc2c-4883-bbe4-7958d5a980be # Process Creation
type: derived
status: test
description: Detects SILENTTRINITY stager dll loading activity
references:
- https://github.com/byt3bl33d3r/SILENTTRINITY
author: Aleksey Potapov, oscd.community
date: 2019-10-22
modified: 2023-02-17
tags:
- attack.command-and-control
- attack.t1071
logsource:
category: image_load
product: windows
detection:
selection:
Description|contains: 'st2stager'
condition: selection
falsepositives:
- Unlikely
level: high
title: Wannacry Killswitch Domain
id: 3eaf6218-3bed-4d8a-8707-274096f12a18
status: test
description: Detects wannacry killswitch domain dns queries
references:
- https://www.mandiant.com/resources/blog/wannacry-ransomware-campaign
author: Mike Wade
date: 2020-09-16
modified: 2022-03-24
tags:
- attack.command-and-control
- attack.t1071.001
logsource:
category: dns
detection:
selection:
query:
- 'ifferfsodp9ifjaposdfjhgosurijfaewrwergwea.testing'
- 'ifferfsodp9ifjaposdfjhgosurijfaewrwergwea.test'
- 'ifferfsodp9ifjaposdfjhgosurijfaewrwergwea.com'
- 'ayylmaotjhsstasdfasdfasdfasdfasdfasdfasdf.com'
- 'iuqssfsodp9ifjaposdfjhgosurijfaewrwergwea.com'
condition: selection
falsepositives:
- Analyst testing
level: high
title: Outbound Network Connection Initiated By Microsoft Dialer
id: 37e4024a-6c80-4d8f-b95d-2e7e94f3a8d1
status: test
description: |
Detects outbound network connection initiated by Microsoft Dialer.
The Microsoft Dialer, also known as Phone Dialer, is a built-in utility application included in various versions of the Microsoft Windows operating system. Its primary function is to provide users with a graphical interface for managing phone calls via a modem or a phone line connected to the computer.
This is an outdated process in the current conext of it's usage and is a common target for info stealers for process injection, and is used to make C2 connections, common example is "Rhadamanthys"
references:
- https://tria.ge/240301-rk34sagf5x/behavioral2
- https://app.any.run/tasks/6720b85b-9c53-4a12-b1dc-73052a78477d
- https://research.checkpoint.com/2023/rhadamanthys-v0-5-0-a-deep-dive-into-the-stealers-components/
- https://strontic.github.io/xcyclopedia/library/dialer.exe-0B69655F912619756C704A0BF716B61F.html
author: CertainlyP
date: 2024-04-26
tags:
- attack.execution
- attack.command-and-control
- attack.t1071.001
logsource:
category: network_connection
product: windows
detection:
selection:
Image|endswith: ':\Windows\System32\dialer.exe'
Initiated: 'true'
filter_main_local_ranges:
DestinationIp|cidr:
- '127.0.0.0/8'
- '10.0.0.0/8'
- '172.16.0.0/12'
- '192.168.0.0/16'
- '169.254.0.0/16'
- '::1/128' # IPv6 loopback
- 'fe80::/10' # IPv6 link-local addresses
- 'fc00::/7' # IPv6 private addresses
condition: selection and not 1 of filter_main_*
falsepositives:
- In Modern Windows systems, unable to see legitimate usage of this process, However, if an organization has legitimate purpose for this there can be false positives.
level: high
title: Renamed Visual Studio Code Tunnel Execution
id: 2cf29f11-e356-4f61-98c0-1bdb9393d6da
status: test
description: Detects renamed Visual Studio Code tunnel execution. Attackers can abuse this functionality to establish a C2 channel
references:
- https://ipfyx.fr/post/visual-studio-code-tunnel/
- https://badoption.eu/blog/2023/01/31/code_c2.html
- https://code.visualstudio.com/docs/remote/tunnels
author: Nasreddine Bencherchali (Nextron Systems)
date: 2023-09-28
modified: 2025-10-29
tags:
- attack.command-and-control
- attack.t1071.001
- attack.t1219
logsource:
category: process_creation
product: windows
detection:
selection_image_only_tunnel:
OriginalFileName: null
CommandLine|endswith: '.exe tunnel'
selection_image_tunnel_args:
CommandLine|contains|all:
- '.exe tunnel'
- '--accept-server-license-terms'
selection_image_tunnel_service:
CommandLine|contains|all:
- 'tunnel '
- 'service'
- 'internal-run'
- 'tunnel-service.log'
selection_parent_tunnel:
ParentCommandLine|endswith: ' tunnel'
Image|endswith: '\cmd.exe'
CommandLine|contains|all:
- '/d /c '
- '\servers\Stable-'
- 'code-server.cmd'
filter_main_parent_code:
ParentImage|endswith:
- '\code-tunnel.exe'
- '\code.exe'
filter_main_image_code:
Image|endswith:
- '\code-tunnel.exe'
- '\code.exe'
condition: (1 of selection_image_* and not 1 of filter_main_image_*) or (selection_parent_tunnel and not 1 of filter_main_parent_*)
falsepositives:
- Unknown
level: high
title: Bitsadmin to Uncommon TLD
id: 9eb68894-7476-4cd6-8752-23b51f5883a7
status: test
description: Detects Bitsadmin connections to domains with uncommon TLDs
references:
- https://twitter.com/jhencinski/status/1102695118455349248
- https://isc.sans.edu/forums/diary/Investigating+Microsoft+BITS+Activity/23281/
author: Florian Roth (Nextron Systems), Tim Shelton
date: 2019-03-07
modified: 2023-05-17
tags:
- attack.command-and-control
- attack.execution
- attack.stealth
- attack.t1071.001
- attack.persistence
- attack.t1197
- attack.s0190
logsource:
category: proxy
detection:
selection:
c-useragent|startswith: 'Microsoft BITS/'
falsepositives:
cs-host|endswith:
- '.com'
- '.net'
- '.org'
- '.scdn.co' # spotify streaming
- '.sfx.ms' # Microsoft domain, example request: https://oneclient.sfx.ms/PreSignInSettings/Prod/2022-08-15-21-xx-xx/PreSignInSettingsConfig.json
condition: selection and not falsepositives
falsepositives:
- Rare programs that use Bitsadmin and update from regional TLDs e.g. .uk or .ca
level: high
title: Raw Paste Service Access
id: 5468045b-4fcc-4d1a-973c-c9c9578edacb
status: test
description: Detects direct access to raw pastes in different paste services often used by malware in their second stages to download malicious code in encrypted or encoded form
references:
- https://www.virustotal.com/gui/domain/paste.ee/relations
author: Florian Roth (Nextron Systems)
date: 2019-12-05
modified: 2023-01-19
tags:
- attack.command-and-control
- attack.t1071.001
- attack.t1102.001
- attack.t1102.003
logsource:
category: proxy
detection:
selection:
c-uri|contains:
- '.paste.ee/r/'
- '.pastebin.com/raw/'
- '.hastebin.com/raw/'
- '.ghostbin.co/paste/*/raw/'
- 'pastetext.net/'
- 'pastebin.pl/'
- 'paste.ee/'
condition: selection
falsepositives:
- User activity (e.g. developer that shared and copied code snippets and used the raw link instead of just copy & paste)
level: high
title: Malware User Agent
id: 5c84856b-55a5-45f1-826f-13f37250cf4e
status: test
description: Detects suspicious user agent strings used by malware in proxy logs
references:
- http://rules.emergingthreats.net/open/snort-2.9.0/rules/emerging-user_agents.rules
- http://www.botopedia.org/search?searchword=scan&searchphrase=all
- https://networkraptor.blogspot.com/2015/01/user-agent-strings.html
- https://perishablepress.com/blacklist/ua-2013.txt
- https://www.bluecoat.com/en-gb/security-blog/2015-05-05/know-your-agents
- https://twitter.com/kladblokje_88/status/1614673320124743681?s=12&t=joEpeVa5d58aHYNGA_To7Q
- https://pbs.twimg.com/media/FtYbfsDXoAQ1Y8M?format=jpg&name=large
- https://twitter.com/crep1x/status/1635034100213112833
author: Florian Roth (Nextron Systems), X__Junior (Nextron Systems), Nasreddine Bencherchali (Nextron Systems)
date: 2017-07-08
modified: 2024-04-14
tags:
- attack.command-and-control
- attack.t1071.001
logsource:
category: proxy
detection:
selection:
c-useragent:
# RATs
- 'Mozilla/5.0 (Windows NT 6.1; WOW64; rv:53.0) Gecko/20100101 Chrome /53.0' # DragonOK
- 'Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 5.1)' # Used by PlugX - base-lining recommended - https://community.rsa.com/thread/185439
- 'Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1; Trident/4.0)' # Used by PlugX - base-lining recommended - https://community.rsa.com/thread/185439
- 'Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.0; .NET CLR 1.1.4322)' # Used by PlugX - old - https://unit42.paloaltonetworks.com/unit-42-identifies-new-dragonok-backdoor-malware-deployed-against-japanese-targets/
- 'HttpBrowser/1.0' # HTTPBrowser RAT
- '*<|>*' # Houdini / Iniduoh / njRAT
- 'nsis_inetc (mozilla)' # ZeroAccess
- 'Wget/1.9+cvs-stable (Red Hat modified)' # Dyre / Upatre
# Ghost419 https://www.mcafee.com/blogs/other-blogs/mcafee-labs/gold-dragon-widens-olympics-malware-attacks-gains-permanent-presence-on-victims-systems/
- 'Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 6.1; Trident/4.0; .NET CLR 1.1.4322)'
# Malware
- '*zeroup*' # W32/Renos.Downloader
- 'Mozilla/5.0 (Windows NT 5.1 ; v.*' # Kazy
- '* adlib/*'
- '* tiny' # Trojan Downloader
- '* BGroom *' # Trojan Downloader
- '* changhuatong'
- '* CholTBAgent'
- 'Mozilla/5.0 WinInet'
- 'RookIE/1.0'
- 'M' # HkMain
- 'Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 5.1; Trident/4.0)' # Egamipload - old UA - probable prone to false positives
- 'Mozilla/4.0 (compatible;MSIE 7.0;Windows NT 6.0)' # Yakes
- 'backdoorbot'
- 'Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9.2.3) Gecko/20100401 Firefox/3.6.1 (.NET CLR 3.5.30731)' # Sality
- 'Opera/8.81 (Windows NT 6.0; U; en)' # Sality
- 'Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9.2.3) Gecko/20100401 Firefox/3.6.1 (.NET CLR 3.5.30729)' # Sality
- 'Opera' # Trojan Keragany
- 'Mozilla/4.0 (compatible; MSIE 5.0; Windows 98)' # Fareit
- 'Mozilla/4.0 (compatible; MSIE 5.01; Windows NT 5.0)' # Webshell's back connect
- 'MSIE' # Toby web shell
- '*(Charon; Inferno)' # Loki Bot
- 'Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 5.1; Trident/5.0)' # Fareit / Pony
- 'Mozilla/4.0 (compatible; MSIE 6.1; Windows NT)' # https://www.virustotal.com/gui/file/8abbef8e58f012d45a7cb46c3c2729dcd33cf53e721ff8c59e238862aa0a9e0e/detection
- 'Mozilla/4.0(compatible; MSIE 6.0; Windows NT 5.1)' # MacControl malware https://www.virustotal.com/gui/file/d60f61f1f03a5011a0240694e110c6d370bf68a92753093186c6d14e26a15428/detection https://www.symantec.com/connect/blogs/osxmacontrol-back-it-again
- 'Mozilla/5.0 (Windows NT 10.0; Win64; x64)' # used by Zebrocy malware https://app.any.run/tasks/7d7fa4a0-6970-4428-828b-29572abf9ceb/
# Ursnif
- 'Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 10.0; Win64; x64)'
- 'Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 6.1; Win64; x64)'
# Emotet
- 'Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 6.2; WOW64; Trident/7.0; .NET4.0C; .NET4.0E; InfoPath.3)' # https://twitter.com/webbthewombat/status/1225827092132179968
# Lockbit (https://twitter.com/kladblokje_88/status/1614673320124743681?s=12&t=joEpeVa5d58aHYNGA_To7Q)
- 'Mozilla/5.0 (Windows NT 6.1)'
- 'AppleWebkit/587.38 (KHTML, like Gecko)'
- 'Chrome/91.0.4472.77'
- 'Safari/537.36'
- 'Edge/91.0.864.37'
- 'Firefox/89.0'
- 'Gecko/20100101'
# Others
- '* pxyscand*'
- '* asd'
- '* mdms'
- 'sample'
- 'nocase'
- 'Moxilla'
- 'Win32 *'
- '*Microsoft Internet Explorer*'
- 'agent *'
- 'AutoIt' # Suspicious - base-lining recommended
- 'IczelionDownLoad'
- 'Mozilla/4.0 (compatible; MSIE 9.0; Windows NT 10.0; .NET4.0C; .NET4.0E; Tablet PC 2.0)' # https://unit42.paloaltonetworks.com/thor-plugx-variant/
- 'record' # https://blog.sekoia.io/raccoon-stealer-v2-part-1-the-return-of-the-dead/
- 'mozzzzzzzzzzz' # https://blog.sekoia.io/raccoon-stealer-v2-part-1-the-return-of-the-dead/
- 'Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:76.0) Gecko/20100101 Firefox/76.0' # Quasar RAT UA https://twitter.com/malmoeb/status/1559994820692672519?s=20&t=g3tkNL09dZZWbFN10qDVjg
- 'Havana/0.1' # https://www.cybereason.com/blog/threat-alert-havanacrypt-ransomware-masquerading-as-google-update
- 'antSword/v2.1' # AntSword Webshell UA
- 'rqwrwqrqwrqw' # Racoon Stealer
- 'qwrqrwrqwrqwr' # Racoon Stealer
- 'rc2.0/client' # Racoon Stealer
- 'TakeMyPainBack' # Racoon Stealer
- 'xxx' # Racoon Stealer
- '20112211' # Racoon Stealer
- '23591' # Racoon Stealer
- '901785252112' # Racoon Stealer
- '1235125521512' # Racoon Stealer
- '125122112551' # Racoon Stealer
- 'B1D3N_RIM_MY_ASS' # Racoon Stealer
- 'AYAYAYAY1337' # Racoon Stealer
- 'iMightJustPayMySelfForAFeature' # Racoon Stealer
- 'ForAFeature' # Racoon Stealer
- 'Ares_ldr_v_*' # AresLoader
# - 'Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:106.0) Gecko/20100101 Firefox/106' # seen used by AresLoader
- 'Microsoft Internet Explorer' # https://github.com/silence-is-best/c2db
- 'CLCTR' # https://github.com/silence-is-best/c2db
- 'uploader' # https://github.com/silence-is-best/c2db
- 'agent' # https://github.com/silence-is-best/c2db
- 'License' # https://github.com/silence-is-best/c2db
- 'vb wininet' # https://github.com/silence-is-best/c2db
- 'Client' # https://github.com/silence-is-best/c2db
- 'Lilith-Bot/3.0' # Lilith Stealer - https://twitter.com/suyog41/status/1558051450797690880
- 'svc/1.0' # SVC Loader - https://twitter.com/suyog41/status/1558051450797690880
- 'WSHRAT' # WSHRAT - https://twitter.com/suyog41/status/1558051450797690880
- 'ZeroStresser Botnet/1.5' # Zerobot - https://twitter.com/suyog41/status/1558051450797690880
- 'OK' # Nymaim - https://twitter.com/suyog41/status/1558051450797690880
- 'Project1sqlite' # DarkCloud - https://twitter.com/suyog41/status/1558051450797690880
- 'Project1' # DarkCloud - https://twitter.com/suyog41/status/1558051450797690880
- 'DuckTales' # Racoon Stealer
- 'Zadanie' # Racoon Stealer
- 'GunnaWunnaBlueTips' # Racoon Stealer
- 'Xlmst' # Racoon Stealer
- 'GeekingToTheMoon' # Racoon Stealer
- 'SunShineMoonLight' # Racoon Stealer
- 'BunnyRequester' # BunnyStealer
- 'BunnyTasks' # BunnyStealer
- 'BunnyStealer' # BunnyStealer
- 'BunnyLoader_Dropper' # BunnyStealer
- 'BunnyLoader' # BunnyStealer
- 'BunnyShell' # BunnyStealer
- 'SPARK-COMMIT' # SparkRAT - https://arcticwolf.com/resources/blog/tellmethetruth-exploitation-of-cve-2023-46604-leading-to-ransomware/
- '4B4DB4B3' # B4B3RAT - https://twitter.com/naumovax/status/1718956514491130301
- 'SouthSide' # Racoon Stealer
- 'Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1; Tob 1.1)' # Latrodectus loader
condition: selection
falsepositives:
- Unknown
level: high
title: HackTool - Empire UserAgent URI Combo
id: b923f7d6-ac89-4a50-a71a-89fb846b4aa8
status: test
description: Detects user agent and URI paths used by empire agents
references:
- https://github.com/BC-SECURITY/Empire
author: Florian Roth (Nextron Systems)
date: 2020-07-13
modified: 2024-02-26
tags:
- attack.command-and-control
- attack.t1071.001
logsource:
category: proxy
detection:
selection:
c-useragent: 'Mozilla/5.0 (Windows NT 6.1; WOW64; Trident/7.0; rv:11.0) like Gecko'
cs-uri:
- '/admin/get.php'
- '/news.php'
- '/login/process.php'
cs-method: 'POST'
condition: selection
falsepositives:
- Valid requests with this exact user agent to server scripts of the defined names
level: high
title: APT User Agent
id: 6ec820f2-e963-4801-9127-d8b2dce4d31b
status: test
description: Detects suspicious user agent strings used in APT malware in proxy logs
references:
- Internal Research
author: Florian Roth (Nextron Systems), Markus Neis
date: 2019-11-12
modified: 2024-02-15
tags:
- attack.command-and-control
- attack.t1071.001
logsource:
category: proxy
detection:
selection:
c-useragent:
# APT Related
- 'SJZJ (compatible; MSIE 6.0; Win32)' # APT Backspace
- 'Mozilla/5.0 (Windows NT 6.; WOW64; rv:20.0) Gecko/20100101 Firefox/20.0' # APT GrizzlySteppe - ChopStick - US CERT https://www.cisa.gov/news-events/alerts/2017/02/10/enhanced-analysis-grizzly-steppe
- 'User-Agent: Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 6.1; Trident/4.0; SLCC' # Comment Crew Miniasp
- 'Mozilla/4.0 (compatible; MSIE 7.4; Win32;32-bit)' # Comment Crew Miniasp
- 'webclient' # Naikon APT
- 'Mozilla/5.0 (Windows; U; Windows NT 5.1; zh-EN; rv:1.7.12) Gecko/200' # Naikon APT
- 'Mozilla/4.0 (compatible; MSI 6.0;' # SnowGlobe Babar - yes, it is cut
- 'Mozilla/5.0 (Windows NT 6.3; WOW64; rv:28.0) Gecko/20100101 Firefox/28.0' # Sofacy - Xtunnel
- 'Mozilla/5.0 (Windows NT 6.2; WOW64; rv:20.0) Gecko/20100101 Firefox/' # Sofacy - Xtunnel
- 'Mozilla/5.0 (Windows NT 6.; WOW64; rv:20.0) Gecko/20100101 Firefox/2' # Sofacy - Xtunnel
- 'Mozilla/4.0' # Derusbi backdoor ELF https://github.com/fideliscyber/indicators/tree/master/FTA-1021
- 'Netscape' # Unit78020 Malware
- 'Mozilla/5.0 (Windows; U; Windows NT 5.1; zh-EN; rv:1.7.12) Gecko/20100719 Firefox/1.0.7' # Unit78020 Malware
- 'Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9.2.13) Firefox/3.6.13 GTB7.1' # Winnti related
- 'Mozilla/5.0 (compatible; MSIE 9.0; Windows NT 6.1; WOW64; Trident/5.0)' # Winnti related
- 'Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 6.1; WOW64; Trident/4.0; SLCC2; .NETCLR 2.0.50727)' # APT17
- 'Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 6.0; SV1)' # Bronze Butler - Daserf
- 'Mozilla/4.0 (compatible; MSIE 11.0; Windows NT 6.1; SV1)' # Bronze Butler - Daserf
- 'Mozilla/4.0 (compatible; MSIE 8.0; Win32)' # TSCookie https://app.any.run/tasks/0996b314-5133-491b-8d23-d431ffdec597
- 'Mozilla v5.1 (Windows NT 6.1; rv:6.0.1) Gecko/20100101 Firefox/6.0.1' # Delphi downloader https://www.welivesecurity.com/2018/04/24/sednit-update-analysis-zebrocy/
- 'Mozilla/6.1 (compatible; MSIE 9.0; Windows NT 5.3; Trident/5.0)' # VPNFilter https://blog.talosintelligence.com/2018/05/VPNFilter.html
- 'Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1; .NET CLR 1.1.4322; .NET CLR 2.0.50727; .NET CLR 3.0.04506.30; .NET CLR 3.0.04506.648; InfoPath.1)' # Sofacy User-Agent https://researchcenter.paloaltonetworks.com/2018/06/unit42-sofacy-groups-parallel-attacks/
- 'Mozilla/5.0 (Windows NT 6.1; WOW64) WinHttp/1.6.3.8 (WinHTTP/5.1) like Gecko' # Sofacy User-Agent https://researchcenter.paloaltonetworks.com/2018/06/unit42-sofacy-groups-parallel-attacks/
- 'Mozilla v5.1 *' # Sofacy Zebrocy samples
- 'MSIE 8.0' # Sofacy Azzy Backdoor from https://www.hybrid-analysis.com/sample/a80e29c0757bee05338fd5c22a542d852ad86c477068e3eb4aacc1c3e59e2eef?environmentId=100
- 'Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 6.1; SLCC2; .NET CLR 2.0.50727; .NET CLR 3.5.30729; .NET CLR 3.0.30729; Media Center PC 6.0; .NET4.0C; .NET4.0E; InfoPath.2)' # https://www.fireeye.com/blog/threat-research/2018/07/microsoft-office-vulnerabilities-used-to-distribute-felixroot-backdoor.html
- 'Mozilla/4.0 (compatible; RMS)' # Attacks on industrial enterprises using RMS and TeamViewer - https://securelist.com/attacks-on-industrial-enterprises-using-rms-and-teamviewer/87104/
- 'Mozilla/4.0 (compatible; MSIE 6.0; DynGate)' # Attacks on industrial enterprises using RMS and TeamViewer - https://securelist.com/attacks-on-industrial-enterprises-using-rms-and-teamviewer/87104/
- 'O/9.27 (W; U; Z)' # Cmstar https://www.virustotal.com/#/file/e4328011bb2b04abc856ccd04404c9f95d67167f6c291d343e8ffa8aa2aa2099/details
- 'Mozilla/5.0 (compatible; MSIE 9.0; Windows NT 6.0; Trident/5.0; Trident/5.0*' # KerrDown UA
- 'Mozilla/5.0 (Windows NT 9; *' # Suspicious 'Windows NT 9' user agent - used by APT33 malware in 2018
- 'hots scot' # Unknown iOS zero-day implant https://twitter.com/craiu/status/1176437994288484352?s=20
- 'Mozilla/5.0 (compatible; MSIE 10.0; Windows NT)' # https://blog.telsy.com/meeting-powerband-the-apt33-net-powerton-variant/
- 'Mozilla/5.0 (Windows NT 6.1; WOW64) Chrome/28.0.1500.95 Safari/537.36' # Hidden Cobra malware
- 'Mozilla/5.0 (Windows NT 6.2; Win32; rv:47.0)' # Strong Pity loader https://twitter.com/VK_Intel/status/1264185981118406657
- 'Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1;SV1;' # Mustang Panda https://insights.oem.avira.com/new-wave-of-plugx-targets-hong-kong/
- 'Mozilla/5.0 (X11; Linux i686; rv:22.0) Firefox/22.0' # BackdoorDiplomacy https://www.welivesecurity.com/2021/06/10/backdoordiplomacy-upgrading-quarian-turian/
- 'Mozilla/5.0 Chrome/72.0.3626.109 Safari/537.36' # SideWalk malware used by Sparkling Goblin
- 'Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:FTS_06) Gecko/22.36.35.06 Firefox/2.0' # LitePower stager used by WRITE https://securelist.com/wirtes-campaign-in-the-middle-east-living-off-the-land-since-at-least-2019/105044/
- 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/102.0.5005.63 Safari/537.36 Edg/100.0.1185.39' # https://www.microsoft.com/security/blog/2022/09/29/zinc-weaponizing-open-source-software/
- 'Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 6.1; WOW64; Trident/4.0; SLCC2; .NET CLR 2.0.50727; .NET CLR 3.5.30729; .NET CLR 3.0.30729; InfoPath.3; .NET4.0C; .NET4.0E)' # https://www.microsoft.com/security/blog/2022/09/29/zinc-weaponizing-open-source-software/
- 'Mozilla/4.0 (compatible; MSIE 9.0; Windows NT 10.0; .NET4.0C; .NET4.0E; Tablet PC 2.0)' # PlugX backdoor https://unit42.paloaltonetworks.com/thor-plugx-variant/
- 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36 Edge/12.246001' # RedCurl Downloader APT https://www.facct.ru/blog/redcurl-2024
condition: selection
falsepositives:
- Old browsers
level: high
title: Windows WebDAV User Agent
id: e09aed7a-09e0-4c9a-90dd-f0d52507347e
status: test
description: Detects WebDav DownloadCradle
references:
- https://mgreen27.github.io/posts/2018/04/02/DownloadCradle.html
author: Florian Roth (Nextron Systems)
date: 2018-04-06
modified: 2021-11-27
tags:
- attack.command-and-control
- attack.t1071.001
logsource:
category: proxy
detection:
selection:
c-useragent|startswith: 'Microsoft-WebDAV-MiniRedir/'
cs-method: 'GET'
condition: selection
falsepositives:
- Administrative scripts that download files from the Internet
- Administrative scripts that retrieve certain website contents
- Legitimate WebDAV administration
level: high
title: Exploit Framework User Agent
id: fdd1bfb5-f60b-4a35-910e-f36ed3d0b32f
status: test
description: Detects suspicious user agent strings used by exploit / pentest frameworks like Metasploit in proxy logs
references:
- https://blog.didierstevens.com/2015/03/16/quickpost-metasploit-user-agent-strings/
author: Florian Roth (Nextron Systems)
date: 2017-07-08
modified: 2025-01-18
tags:
- attack.command-and-control
- attack.t1071.001
logsource:
category: proxy
detection:
selection:
c-useragent:
# Cobalt Strike https://www.cobaltstrike.com/help-malleable-c2
- 'Internet Explorer *'
- 'Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1; InfoPath.2)' # https://bluescreenofjeff.com/2016-06-28-cobalt-strike-http-c2-redirectors-with-apache-mod_rewrite/
# Metasploit Framework - Analysis by Didier Stevens https://blog.didierstevens.com/2015/03/16/quickpost-metasploit-user-agent-strings/
- 'Mozilla/4.0 (compatible; Metasploit RSPEC)'
- 'Mozilla/4.0 (compatible; MSIE 6.1; Windows NT)'
- 'Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1)' # old browser, rare, base-lining needed
- 'Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 6.0)' # old browser, rare, base-lining needed
- 'Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 6.0; Trident/4.0)' # old browser, rare, base-lining needed
- 'Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 6.0; Trident/4.0; SIMBAR={7DB0F6DE-8DE7-4841-9084-28FA914B0F2E}; SLCC1; .N'
- 'Mozilla/5.0 (compatible; Googlebot/2.1; +http://www.google.com/bot.html)' # only use in proxy logs - not for detection in web server logs
- 'Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US) AppleWebKit/525.13 (KHTML, like Gecko) Chrome/4.0.221.6 Safari/525.13'
- 'Mozilla/5.0 (compatible; MSIE 9.0; Windows NT 6.1; WOW64; Trident/5.0; MAAU)' # Payloads
# Metasploit Update by Florian Roth 08.07.2017
- 'Mozilla/5.0'
- 'Mozilla/4.0 (compatible; SPIPE/1.0'
# - 'Mozilla/5.0 (compatible; MSIE 10.0; Windows NT 6.1; Trident/6.0)' # too many false positives expected
# - 'Mozilla/5.0 (Windows NT 6.1; Trident/7.0; rv:11.0) like Gecko' # too many false positives expected
- 'Mozilla/5.0 (Windows NT 6.3; rv:39.0) Gecko/20100101 Firefox/35.0'
- 'Sametime Community Agent' # Unknown if prone to false positives - https://github.com/rapid7/metasploit-framework/blob/97095ab3113de2f046e64a64c461a1f888554401/modules/exploits/windows/http/steamcast_useragent.rb
- 'X-FORWARDED-FOR'
- 'DotDotPwn v2.1'
- 'SIPDROID'
- 'Mozilla/5.0 (Windows NT 10.0; Win32; x32; rv:60.0)' # CobaltStrike https://unit42.paloaltonetworks.com/tracking-oceanlotus-new-downloader-kerrdown/
# Empire
- 'Mozilla/6.0 (X11; Linux x86_64; rv:24.0) Gecko/20140205 Firefox/27.0 Iceweasel/25.3.0'
# Exploits
- '*wordpress hash grabber*'
- '*exploit*'
# Havoc
- 'Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/96.0.4664.110 Safari/537.36' # https://github.com/HavocFramework/Havoc/issues/519
condition: selection
falsepositives:
- Unknown
level: high
title: Crypto Miner User Agent
id: fa935401-513b-467b-81f4-f9e77aa0dd78
status: test
description: Detects suspicious user agent strings used by crypto miners in proxy logs
references:
- https://github.com/xmrig/xmrig/blob/da22b3e6c45825f3ac1f208255126cb8585cd4fc/src/base/kernel/Platform_win.cpp#L65
- https://github.com/xmrig/xmrig/blob/427b6516e0550200c17ca28675118f0fffcc323f/src/version.h
author: Florian Roth (Nextron Systems)
date: 2019-10-21
modified: 2021-11-27
tags:
- attack.command-and-control
- attack.t1071.001
logsource:
category: proxy
detection:
selection:
c-useragent|startswith:
# XMRig
- 'XMRig '
# CCMiner
- 'ccminer'
condition: selection
falsepositives:
- Unknown
level: high
title: Bitsadmin to Uncommon IP Server Address
id: 8ccd35a2-1c7c-468b-b568-ac6cdf80eec3
status: test
description: Detects Bitsadmin connections to IP addresses instead of FQDN names
references:
- https://isc.sans.edu/diary/Microsoft+BITS+Used+to+Download+Payloads/21027
author: Florian Roth (Nextron Systems)
date: 2022-06-10
modified: 2022-08-24
tags:
- attack.command-and-control
- attack.execution
- attack.stealth
- attack.t1071.001
- attack.persistence
- attack.t1197
- attack.s0190
logsource:
category: proxy
detection:
selection:
c-useragent|startswith: 'Microsoft BITS/'
cs-host|endswith:
- '1'
- '2'
- '3'
- '4'
- '5'
- '6'
- '7'
- '8'
- '9'
condition: selection
falsepositives:
- Unknown
level: high
title: Suspicious User Agent
id: 7195a772-4b3f-43a4-a210-6a003d65caa1
status: test
description: Detects suspicious malformed user agent strings in proxy logs
references:
- https://github.com/fastly/waf_testbed/blob/8bfc406551f3045e418cbaad7596cff8da331dfc/templates/default/scanners-user-agents.data.erb
author: Florian Roth (Nextron Systems)
date: 2017-07-08
modified: 2022-10-31
tags:
- attack.command-and-control
- attack.t1071.001
logsource:
category: proxy
detection:
selection1:
c-useragent|startswith:
- 'user-agent' # User-Agent: User-Agent:
- 'Mozilla/3.0 '
- 'Mozilla/2.0 '
- 'Mozilla/1.0 '
- 'Mozilla ' # missing slash
- ' Mozilla/' # leading space
- 'Mozila/' # single 'l'
- 'Mozilla/4.0 (compatible; MSIE 6.0; MS Web Services Client Protocol' # https://twitter.com/NtSetDefault/status/1303643299509567488
selection2:
c-useragent|contains:
- ' (compatible;MSIE ' # typical typo - missing space
- '.0;Windows NT ' # typical typo - missing space
- 'loader' # https://twitter.com/securityonion/status/1522614635152744453?s=20&t=gHyPTSq5A27EqKwrCd9ohg
selection3:
c-useragent:
- '_'
- 'CertUtil URL Agent' # https://twitter.com/stvemillertime/status/985150675527974912
- 'Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:60.0)' # CobaltStrike Beacon https://unit42.paloaltonetworks.com/tracking-oceanlotus-new-downloader-kerrdown/
- 'Mozilla/5.0 (Windows NT 6.3; WOW64; rv:28.0) Gecko/20100101 Firefox/28.0' # used by APT28 malware https://threatvector.cylance.com/en_us/home/inside-the-apt28-dll-backdoor-blitz.html
- 'HTTPS' # https://twitter.com/stvemillertime/status/1204437531632250880
- 'Erbium-UA-4ce7c27cb4be9d32e333bf032c88235a' # https://www.cyfirma.com/outofband/erbium-stealer-malware-report
- 'x' # Use by Racoon Stealer but could be something else
- 'xxx' # Use by Racoon Stealer but could be something else
falsepositives:
- c-useragent: 'Mozilla/3.0 * Acrobat *' # Acrobat with linked content
- cs-host|endswith: # Adobe product traffic, example: Mozilla/3.0 (compatible; Adobe Synchronizer 10.12.20000)
- '.acrobat.com'
- '.adobe.com'
- '.adobe.io'
condition: 1 of selection* and not falsepositives
falsepositives:
- Unknown
level: high
title: HackTool - CobaltStrike Malleable Profile Patterns - Proxy
id: f3f21ce1-cdef-4bfc-8328-ed2e826f5fac
related:
- id: 953b895e-5cc9-454b-b183-7f3db555452e
type: obsolete
- id: 41b42a36-f62c-4c34-bd40-8cb804a34ad8
type: obsolete
- id: 37325383-740a-403d-b1a2-b2b4ab7992e7
type: obsolete
- id: c9b33401-cc6a-4cf6-83bb-57ddcb2407fc
type: obsolete
status: test
description: Detects cobalt strike malleable profiles patterns (URI, User-Agents, Methods).
references:
- https://github.com/rsmudge/Malleable-C2-Profiles/blob/26323784672913923d20c5a638c6ca79459e8529/normal/amazon.profile
- https://www.hybrid-analysis.com/sample/ee5eca8648e45e2fea9dac0d920ef1a1792d8690c41ee7f20343de1927cc88b9?environmentId=100
- https://github.com/rsmudge/Malleable-C2-Profiles/blob/26323784672913923d20c5a638c6ca79459e8529/normal/ocsp.profile
- https://github.com/yeyintminthuhtut/Malleable-C2-Profiles-Collection/
- https://github.com/rsmudge/Malleable-C2-Profiles/blob/26323784672913923d20c5a638c6ca79459e8529/normal/onedrive_getonly.profile
author: Markus Neis, Florian Roth (Nextron Systems)
date: 2024-02-15
tags:
- attack.command-and-control
- attack.t1071.001
logsource:
category: proxy
detection:
selection_amazon_1:
c-useragent: 'Mozilla/5.0 (Windows NT 6.1; WOW64; Trident/7.0; rv:11.0) like Gecko'
cs-method: 'GET'
c-uri: '/s/ref=nb_sb_noss_1/167-3294888-0262949/field-keywords=books'
cs-host: 'www.amazon.com'
cs-cookie|endswith: '=csm-hit=s-24KU11BB82RZSYGJ3BDK|1419899012996'
selection_amazon_2:
c-useragent: 'Mozilla/5.0 (Windows NT 6.1; WOW64; Trident/7.0; rv:11.0) like Gecko'
cs-method: 'POST'
c-uri: '/N4215/adj/amzn.us.sr.aps'
cs-host: 'www.amazon.com'
selection_generic_1:
c-useragent:
- 'Mozilla/4.0 (compatible; MSIE 6.0;Windows NT 5.1)'
- 'Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 6.1; WOW64; Trident/4.0; SLCC2; .NET CLR 3.0.30729; .NET4.0C; .NET4.0E )'
- 'Mozilla/5.0 (Windows; U; MSIE 7.0; Windows NT 5.2) Java/1.5.0_08'
selection_generic_2:
c-useragent|endswith: '; MANM; MANM)'
selection_oscp:
c-uri|contains: '/oscp/'
cs-host: 'ocsp.verisign.com'
selection_onedrive:
cs-method: 'GET'
c-uri|endswith: '\?manifest=wac'
cs-host: 'onedrive.live.com'
filter_main_onedrive:
c-uri|startswith: 'http'
c-uri|contains: '://onedrive.live.com/'
condition: 1 of selection_* and not 1 of filter_main_*
falsepositives:
- Unknown
level: high
title: OpenCanary - SSH Login Attempt
id: ff7139bc-fdb1-4437-92f2-6afefe8884cb
status: test
description: Detects instances where an SSH service on an OpenCanary node has had a login attempt.
references:
- https://opencanary.readthedocs.io/en/latest/starting/configuration.html#services-configuration
- https://github.com/thinkst/opencanary/blob/a0896adfcaf0328cfd5829fe10d2878c7445138e/opencanary/logger.py#L52
author: Security Onion Solutions
date: 2024-03-08
tags:
- attack.privilege-escalation
- attack.initial-access
- attack.lateral-movement
- attack.persistence
- attack.stealth
- attack.t1133
- attack.t1021
- attack.t1078
logsource:
category: application
product: opencanary
detection:
selection:
logtype: 4002
condition: selection
falsepositives:
- Unlikely
level: high
title: OpenCanary - Telnet Login Attempt
id: 512cff7a-683a-43ad-afe0-dd398e872f36
status: test
description: Detects instances where a Telnet service on an OpenCanary node has had a login attempt.
references:
- https://opencanary.readthedocs.io/en/latest/starting/configuration.html#services-configuration
- https://github.com/thinkst/opencanary/blob/a0896adfcaf0328cfd5829fe10d2878c7445138e/opencanary/logger.py#L52
author: Security Onion Solutions
date: 2024-03-08
tags:
- attack.privilege-escalation
- attack.persistence
- attack.initial-access
- attack.command-and-control
- attack.stealth
- attack.t1133
- attack.t1078
logsource:
category: application
product: opencanary
detection:
selection:
logtype: 6001
condition: selection
falsepositives:
- Unlikely
level: high
title: OpenCanary - SSH New Connection Attempt
id: cd55f721-5623-4663-bd9b-5229cab5237d
status: test
description: Detects instances where an SSH service on an OpenCanary node has had a connection attempt.
references:
- https://opencanary.readthedocs.io/en/latest/starting/configuration.html#services-configuration
- https://github.com/thinkst/opencanary/blob/a0896adfcaf0328cfd5829fe10d2878c7445138e/opencanary/logger.py#L52
author: Security Onion Solutions
date: 2024-03-08
tags:
- attack.privilege-escalation
- attack.initial-access
- attack.lateral-movement
- attack.persistence
- attack.stealth
- attack.t1133
- attack.t1021
- attack.t1078
logsource:
category: application
product: opencanary
detection:
selection:
logtype: 4000
condition: selection
falsepositives:
- Unlikely
level: high
title: Malicious Usage Of IMDS Credentials Outside Of AWS Infrastructure
id: 352a918a-34d8-4882-8470-44830c507aa3
status: test
description: |
Detects when an instance identity has taken an action that isn't inside SSM.
This can indicate that a compromised EC2 instance is being used as a pivot point.
references:
- https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/ec2-instance-identity-roles.html
- https://ermetic.com/blog/aws/aws-ec2-imds-what-you-need-to-know/
- https://www.packetmischief.ca/2023/07/31/amazon-ec2-credential-exfiltration-how-it-happens-and-how-to-mitigate-it/#lifting-credentials-from-imds-this-is-why-we-cant-have-nice-things
author: jamesc-grafana
date: 2024-07-11
tags:
- attack.privilege-escalation
- attack.initial-access
- attack.persistence
- attack.stealth
- attack.t1078
- attack.t1078.002
logsource:
product: aws
service: cloudtrail
detection:
selection:
userIdentity.arn|re: '.+:assumed-role/aws:.+'
filter_main_generic:
- eventSource: 'ssm.amazonaws.com'
- eventName: 'RegisterManagedInstance'
- sourceIPAddress: 'AWS Internal'
condition: selection and not 1 of filter_main_*
falsepositives:
- A team has configured an EC2 instance to use instance profiles that grant the option for the EC2 instance to talk to other AWS Services
level: high
title: Activity From Anonymous IP Address
id: be4d9c86-d702-4030-b52e-c7859110e5e8
status: test
description: Identifies that users were active from an IP address that has been identified as an anonymous proxy IP address.
references:
- https://learn.microsoft.com/en-us/entra/id-protection/concept-identity-protection-risks#activity-from-anonymous-ip-address
- https://learn.microsoft.com/en-us/entra/architecture/security-operations-user-accounts#unusual-sign-ins
author: Mark Morowczynski '@markmorow', Gloria Lee, '@gleeiamglo'
date: 2023-09-03
tags:
- attack.stealth
- attack.t1078
- attack.persistence
- attack.privilege-escalation
- attack.initial-access
logsource:
product: azure
service: riskdetection
detection:
selection:
riskEventType: 'riskyIPAddress'
condition: selection
falsepositives:
- We recommend investigating the sessions flagged by this detection in the context of other sign-ins from the user.
level: high
title: Suspicious Browser Activity
id: 944f6adb-7a99-4c69-80c1-b712579e93e6
status: test
description: Indicates anomalous behavior based on suspicious sign-in activity across multiple tenants from different countries in the same browser
references:
- https://learn.microsoft.com/en-us/entra/id-protection/concept-identity-protection-risks#suspicious-browser
- https://learn.microsoft.com/en-us/entra/architecture/security-operations-user-accounts#unusual-sign-ins
author: Mark Morowczynski '@markmorow', Gloria Lee, '@gleeiamglo'
date: 2023-09-03
tags:
- attack.stealth
- attack.t1078
- attack.persistence
- attack.privilege-escalation
- attack.initial-access
logsource:
product: azure
service: riskdetection
detection:
selection:
riskEventType: 'suspiciousBrowser'
condition: selection
falsepositives:
- We recommend investigating the sessions flagged by this detection in the context of other sign-ins from the user.
level: high
title: New Country
id: adf9f4d2-559e-4f5c-95be-c28dff0b1476
status: test
description: Detects sign-ins from new countries. The detection considers past activity locations to determine new and infrequent locations.
references:
- https://learn.microsoft.com/en-us/entra/id-protection/concept-identity-protection-risks#new-country
- https://learn.microsoft.com/en-us/entra/architecture/security-operations-user-accounts#unusual-sign-ins
author: Mark Morowczynski '@markmorow', Gloria Lee, '@gleeiamglo'
date: 2023-09-03
tags:
- attack.stealth
- attack.t1078
- attack.persistence
- attack.privilege-escalation
- attack.initial-access
logsource:
product: azure
service: riskdetection
detection:
selection:
riskEventType: 'newCountry'
condition: selection
falsepositives:
- We recommend investigating the sessions flagged by this detection in the context of other sign-ins from the user.
level: high
title: Unfamiliar Sign-In Properties
id: 128faeef-79dd-44ca-b43c-a9e236a60f49
status: test
description: Detects sign-in with properties that are unfamiliar to the user. The detection considers past sign-in history to look for anomalous sign-ins.
references:
- https://learn.microsoft.com/en-us/entra/id-protection/concept-identity-protection-risks#unfamiliar-sign-in-properties
- https://learn.microsoft.com/en-us/entra/architecture/security-operations-user-accounts#unusual-sign-ins
author: Mark Morowczynski '@markmorow', Gloria Lee, '@gleeiamglo'
date: 2023-09-03
tags:
- attack.stealth
- attack.t1078
- attack.persistence
- attack.privilege-escalation
- attack.initial-access
logsource:
product: azure
service: riskdetection
detection:
selection:
riskEventType: 'unfamiliarFeatures'
condition: selection
falsepositives:
- User changing to a new device, location, browser, etc.
level: high
title: Atypical Travel
id: 1a41023f-1e70-4026-921a-4d9341a9038e
status: test
description: Identifies two sign-ins originating from geographically distant locations, where at least one of the locations may also be atypical for the user, given past behavior.
references:
- https://learn.microsoft.com/en-us/entra/id-protection/concept-identity-protection-risks#atypical-travel
- https://learn.microsoft.com/en-us/entra/architecture/security-operations-user-accounts#unusual-sign-ins
author: Mark Morowczynski '@markmorow', Gloria Lee, '@gleeiamglo'
date: 2023-09-03
tags:
- attack.stealth
- attack.t1078
- attack.persistence
- attack.privilege-escalation
- attack.initial-access
logsource:
product: azure
service: riskdetection
detection:
selection:
riskEventType: 'unlikelyTravel'
condition: selection
falsepositives:
- We recommend investigating the sessions flagged by this detection in the context of other sign-ins from the user.
level: high
title: Azure AD Threat Intelligence
id: a2cb56ff-4f46-437a-a0fa-ffa4d1303cba
status: test
description: Indicates user activity that is unusual for the user or consistent with known attack patterns.
references:
- https://learn.microsoft.com/en-us/entra/id-protection/concept-identity-protection-risks#azure-ad-threat-intelligence-sign-in
- https://learn.microsoft.com/en-us/entra/id-protection/concept-identity-protection-risks#azure-ad-threat-intelligence-user
- https://learn.microsoft.com/en-us/entra/architecture/security-operations-user-accounts#unusual-sign-ins
author: Mark Morowczynski '@markmorow', Gloria Lee, '@gleeiamglo'
date: 2023-09-07
tags:
- attack.stealth
- attack.t1078
- attack.persistence
- attack.privilege-escalation
- attack.initial-access
logsource:
product: azure
service: riskdetection
detection:
selection:
riskEventType: 'investigationsThreatIntelligence'
condition: selection
falsepositives:
- We recommend investigating the sessions flagged by this detection in the context of other sign-ins from the user.
level: high
title: Impossible Travel
id: b2572bf9-e20a-4594-b528-40bde666525a
status: test
description: Identifies user activities originating from geographically distant locations within a time period shorter than the time it takes to travel from the first location to the second.
references:
- https://learn.microsoft.com/en-us/entra/id-protection/concept-identity-protection-risks#impossible-travel
- https://learn.microsoft.com/en-us/entra/architecture/security-operations-user-accounts#unusual-sign-ins
author: Mark Morowczynski '@markmorow', Gloria Lee, '@gleeiamglo'
date: 2023-09-03
tags:
- attack.stealth
- attack.t1078
- attack.persistence
- attack.privilege-escalation
- attack.initial-access
logsource:
product: azure
service: riskdetection
detection:
selection:
riskEventType: 'impossibleTravel'
condition: selection
falsepositives:
- Connecting to a VPN, performing activity and then dropping and performing additional activity.
level: high
title: Suspicious SignIns From A Non Registered Device
id: 572b12d4-9062-11ed-a1eb-0242ac120002
status: test
description: Detects risky authentication from a non AD registered device without MFA being required.
references:
- https://learn.microsoft.com/en-us/entra/architecture/security-operations-devices#non-compliant-device-sign-in
author: Harjot Singh, '@cyb3rjy0t'
date: 2023-01-10
modified: 2025-07-02
tags:
- attack.privilege-escalation
- attack.persistence
- attack.initial-access
- attack.stealth
- attack.t1078
logsource:
product: azure
service: signinlogs
detection:
selection_main:
Status: 'Success'
AuthenticationRequirement: 'singleFactorAuthentication'
RiskState: 'atRisk'
selection_empty1:
DeviceDetail.trusttype: ''
selection_empty2:
DeviceDetail.trusttype: null
condition: selection_main and 1 of selection_empty*
falsepositives:
- Unknown
level: high
title: Roles Assigned Outside PIM
id: b1bc08d1-8224-4758-a0e6-fbcfc98c73bb
status: test
description: Identifies when a privilege role assignment has taken place outside of PIM and may indicate an attack.
references:
- https://learn.microsoft.com/en-us/entra/id-governance/privileged-identity-management/pim-how-to-configure-security-alerts#roles-are-being-assigned-outside-of-privileged-identity-management
author: Mark Morowczynski '@markmorow', Gloria Lee, '@gleeiamglo'
date: 2023-09-14
tags:
- attack.initial-access
- attack.stealth
- attack.t1078
- attack.persistence
- attack.privilege-escalation
logsource:
product: azure
service: pim
detection:
selection:
riskEventType: 'rolesAssignedOutsidePrivilegedIdentityManagementAlertConfiguration'
condition: selection
falsepositives:
- Investigate where users are being assigned privileged roles outside of Privileged Identity Management and prohibit future assignments from there.
level: high
title: Roles Activated Too Frequently
id: 645fd80d-6c07-435b-9e06-7bc1b5656cba
status: test
description: Identifies when the same privilege role has multiple activations by the same user.
references:
- https://learn.microsoft.com/en-us/entra/id-governance/privileged-identity-management/pim-how-to-configure-security-alerts#roles-are-being-activated-too-frequently
author: Mark Morowczynski '@markmorow', Gloria Lee, '@gleeiamglo'
date: 2023-09-14
tags:
- attack.initial-access
- attack.stealth
- attack.t1078
- attack.persistence
- attack.privilege-escalation
logsource:
product: azure
service: pim
detection:
selection:
riskEventType: 'sequentialActivationRenewalsAlertIncident'
condition: selection
falsepositives:
- Investigate where if active time period for a role is set too short.
level: high
title: Roles Activation Doesn't Require MFA
id: 94a66f46-5b64-46ce-80b2-75dcbe627cc0
status: test
description: Identifies when a privilege role can be activated without performing mfa.
references:
- https://learn.microsoft.com/en-us/entra/id-governance/privileged-identity-management/pim-how-to-configure-security-alerts#roles-dont-require-multi-factor-authentication-for-activation
author: Mark Morowczynski '@markmorow', Gloria Lee, '@gleeiamglo'
date: 2023-09-14
tags:
- attack.initial-access
- attack.stealth
- attack.t1078
- attack.persistence
- attack.privilege-escalation
logsource:
product: azure
service: pim
detection:
selection:
riskEventType: 'noMfaOnRoleActivationAlertIncident'
condition: selection
falsepositives:
- Investigate if user is performing MFA at sign-in.
level: high
title: Too Many Global Admins
id: 7bbc309f-e2b1-4eb1-8369-131a367d67d3
status: test
description: Identifies an event where there are there are too many accounts assigned the Global Administrator role.
references:
- https://learn.microsoft.com/en-us/entra/id-governance/privileged-identity-management/pim-how-to-configure-security-alerts#there-are-too-many-global-administrators
author: Mark Morowczynski '@markmorow', Gloria Lee, '@gleeiamglo'
date: 2023-09-14
tags:
- attack.initial-access
- attack.stealth
- attack.t1078
- attack.persistence
- attack.privilege-escalation
logsource:
product: azure
service: pim
detection:
selection:
riskEventType: 'tooManyGlobalAdminsAssignedToTenantAlertIncident'
condition: selection
falsepositives:
- Investigate if threshold setting in PIM is too low.
level: high
title: Stale Accounts In A Privileged Role
id: e402c26a-267a-45bd-9615-bd9ceda6da85
status: test
description: Identifies when an account hasn't signed in during the past n number of days.
references:
- https://learn.microsoft.com/en-us/entra/id-governance/privileged-identity-management/pim-how-to-configure-security-alerts#potential-stale-accounts-in-a-privileged-role
author: Mark Morowczynski '@markmorow', Gloria Lee, '@gleeiamglo'
date: 2023-09-14
tags:
- attack.initial-access
- attack.stealth
- attack.t1078
- attack.persistence
- attack.privilege-escalation
logsource:
product: azure
service: pim
detection:
selection:
riskEventType: 'staleSignInAlertIncident'
condition: selection
falsepositives:
- Investigate if potential generic account that cannot be removed.
level: high
title: Roles Are Not Being Used
id: 8c6ec464-4ae4-43ac-936a-291da66ed13d
status: test
description: Identifies when a user has been assigned a privilege role and are not using that role.
references:
- https://learn.microsoft.com/en-us/entra/id-governance/privileged-identity-management/pim-how-to-configure-security-alerts#administrators-arent-using-their-privileged-roles
author: Mark Morowczynski '@markmorow', Gloria Lee, '@gleeiamglo'
date: 2023-09-14
tags:
- attack.initial-access
- attack.stealth
- attack.t1078
- attack.persistence
- attack.privilege-escalation
logsource:
product: azure
service: pim
detection:
selection:
riskEventType: 'redundantAssignmentAlertIncident'
condition: selection
falsepositives:
- Investigate if potential generic account that cannot be removed.
level: high
title: Invalid PIM License
id: 58af08eb-f9e1-43c8-9805-3ad9b0482bd8
status: test
description: Identifies when an organization doesn't have the proper license for PIM and is out of compliance.
references:
- https://learn.microsoft.com/en-us/entra/id-governance/privileged-identity-management/pim-how-to-configure-security-alerts#the-organization-doesnt-have-microsoft-entra-premium-p2-or-microsoft-entra-id-governance
author: Mark Morowczynski '@markmorow', Gloria Lee, '@gleeiamglo'
date: 2023-09-14
tags:
- attack.initial-access
- attack.stealth
- attack.t1078
- attack.persistence
- attack.privilege-escalation
logsource:
product: azure
service: pim
detection:
selection:
riskEventType: 'invalidLicenseAlertIncident'
condition: selection
falsepositives:
- Investigate if licenses have expired.
level: high
title: PIM Alert Setting Changes To Disabled
id: aeaef14c-e5bf-4690-a9c8-835caad458bd
status: test
description: Detects when PIM alerts are set to disabled.
references:
- https://learn.microsoft.com/en-us/entra/architecture/security-operations-privileged-identity-management#azure-ad-roles-assignment
author: Mark Morowczynski '@markmorow', Yochana Henderson, '@Yochana-H'
date: 2022-08-09
tags:
- attack.initial-access
- attack.persistence
- attack.privilege-escalation
- attack.stealth
- attack.t1078
logsource:
product: azure
service: auditlogs
detection:
selection:
properties.message: Disable PIM Alert
condition: selection
falsepositives:
- Administrator disabling PIM alerts as an active choice.
level: high
title: Azure Subscription Permission Elevation Via AuditLogs
id: ca9bf243-465e-494a-9e54-bf9fc239057d
status: test
description: |
Detects when a user has been elevated to manage all Azure Subscriptions.
This change should be investigated immediately if it isn't planned.
This setting could allow an attacker access to Azure subscriptions in your environment.
references:
- https://learn.microsoft.com/en-us/entra/architecture/security-operations-privileged-accounts#assignment-and-elevation
author: Austin Songer @austinsonger
date: 2021-11-26
modified: 2022-12-25
tags:
- attack.privilege-escalation
- attack.persistence
- attack.initial-access
- attack.stealth
- attack.t1078
logsource:
product: azure
service: auditlogs
detection:
selection:
Category: 'Administrative'
OperationName: 'Assigns the caller to user access admin'
condition: selection
falsepositives:
- If this was approved by System Administrator.
level: high
title: Account Created And Deleted Within A Close Time Frame
id: 6f583da0-3a90-4566-a4ed-83c09fe18bbf
status: test
description: Detects when an account was created and deleted in a short period of time.
references:
- https://learn.microsoft.com/en-us/entra/architecture/security-operations-user-accounts#short-lived-accounts
author: Mark Morowczynski '@markmorow', MikeDuddington, '@dudders1', Tim Shelton
date: 2022-08-11
modified: 2022-08-18
tags:
- attack.privilege-escalation
- attack.persistence
- attack.initial-access
- attack.stealth
- attack.t1078
logsource:
product: azure
service: auditlogs
detection:
selection:
properties.message:
- Add user
- Delete user
Status: Success
condition: selection
falsepositives:
- Legit administrative action
level: high
title: Azure Login Bypassing Conditional Access Policies
id: 13f2d3f5-6497-44a7-bf5f-dc13ffafe5dc
status: experimental
description: |
Detects a successful login to the Microsoft Intune Company Portal which could allow bypassing Conditional Access Policies and InTune device trust using a tool like TokenSmith.
author: Josh Nickels, Marius Rothenbücher
references:
- https://labs.jumpsec.com/tokensmith-bypassing-intune-compliant-device-conditional-access/
- https://github.com/JumpsecLabs/TokenSmith
date: 2025-01-08
tags:
- attack.privilege-escalation
- attack.persistence
- attack.initial-access
- attack.stealth
- attack.t1078
logsource:
service: audit
product: m365
detection:
selection:
Operation: 'UserLoggedIn'
ApplicationId: '9ba1a5c7-f17a-4de9-a1f1-6178c8d51223'
ResultStatus: 'Success'
RequestType: 'Cmsi:Cmsi'
filter_main_bjectid:
ObjectId: '0000000a-0000-0000-c000-000000000000' # Microsoft Intune seen when mobile devices are enrolled
condition: selection and not 1 of filter_main_*
falsepositives:
- Unknown
level: high
title: External Remote SMB Logon from Public IP
id: 78d5cab4-557e-454f-9fb9-a222bd0d5edc
related:
- id: 259a9cdf-c4dd-4fa2-b243-2269e5ab18a2
type: derived
status: test
description: Detects successful logon from public IP address via SMB. This can indicate a publicly-exposed SMB port.
references:
- https://www.inversecos.com/2020/04/successful-4624-anonymous-logons-to.html
- https://twitter.com/Purp1eW0lf/status/1616144561965002752
author: Micah Babinski (@micahbabinski), Zach Mathis (@yamatosecurity)
date: 2023-01-19
modified: 2024-03-11
tags:
- attack.privilege-escalation
- attack.persistence
- attack.initial-access
- attack.credential-access
- attack.stealth
- attack.t1133
- attack.t1078
- attack.t1110
logsource:
product: windows
service: security
detection:
selection:
EventID: 4624
LogonType: 3
filter_main_local_ranges:
IpAddress|cidr:
- '::1/128' # IPv6 loopback
- '10.0.0.0/8'
- '127.0.0.0/8'
- '172.16.0.0/12'
- '192.168.0.0/16'
- '169.254.0.0/16'
- 'fc00::/7' # IPv6 private addresses
- 'fe80::/10' # IPv6 link-local addresses
filter_main_empty:
IpAddress: '-'
condition: selection and not 1 of filter_main_*
falsepositives:
- Legitimate or intentional inbound connections from public IP addresses on the SMB port.
level: high
title: OpenCanary - HTTPPROXY Login Attempt
id: 5498fc09-adc6-4804-b9d9-5cca1f0b8760
status: test
description: |
Detects instances where an HTTPPROXY service on an OpenCanary node has had an attempt to proxy another page.
references:
- https://opencanary.readthedocs.io/en/latest/starting/configuration.html#services-configuration
- https://github.com/thinkst/opencanary/blob/a0896adfcaf0328cfd5829fe10d2878c7445138e/opencanary/logger.py#L52
author: Security Onion Solutions
date: 2024-03-08
tags:
- attack.initial-access
- attack.command-and-control
- attack.t1090
logsource:
category: application
product: opencanary
detection:
selection:
logtype: 7001
condition: selection
falsepositives:
- Unlikely
level: high
title: Malicious IP Address Sign-In Failure Rate
id: a3f55ebd-0c01-4ed6-adc0-8fb76d8cd3cd
status: test
description: Indicates sign-in from a malicious IP address based on high failure rates.
references:
- https://learn.microsoft.com/en-us/entra/id-protection/concept-identity-protection-risks#malicious-ip-address
- https://learn.microsoft.com/en-us/entra/architecture/security-operations-user-accounts#unusual-sign-ins
author: Mark Morowczynski '@markmorow', Gloria Lee, '@gleeiamglo'
date: 2023-09-07
tags:
- attack.t1090
- attack.command-and-control
logsource:
product: azure
service: riskdetection
detection:
selection:
riskEventType: 'maliciousIPAddress'
condition: selection
falsepositives:
- We recommend investigating the sessions flagged by this detection in the context of other sign-ins from the user.
level: high
title: Malicious IP Address Sign-In Suspicious
id: 36440e1c-5c22-467a-889b-593e66498472
status: test
description: Indicates sign-in from a malicious IP address known to be malicious at time of sign-in.
references:
- https://learn.microsoft.com/en-us/entra/id-protection/concept-identity-protection-risks#malicious-ip-address
- https://learn.microsoft.com/en-us/entra/architecture/security-operations-user-accounts#unusual-sign-ins
author: Mark Morowczynski '@markmorow', Gloria Lee, '@gleeiamglo'
date: 2023-09-07
tags:
- attack.t1090
- attack.command-and-control
logsource:
product: azure
service: riskdetection
detection:
selection:
riskEventType: 'suspiciousIPAddress'
condition: selection
falsepositives:
- We recommend investigating the sessions flagged by this detection in the context of other sign-ins from the user.
level: high