Sigma rules for CVE-2006-6235
53 rules · scoped to cve · back to CVE-2006-6235
Direct rules mention this entity in their title or description. Related rules cover the techniques this entity is known to use.
title: File Encryption/Decryption Via Gpg4win From Suspicious Locations
id: e1e0b7d7-e10b-4ee4-ac49-a4bda05d320d
status: test
description: Detects usage of Gpg4win to encrypt/decrypt files located in potentially suspicious locations.
references:
- https://blogs.vmware.com/security/2022/11/batloader-the-evasive-downloader-malware.html
- https://news.sophos.com/en-us/2022/01/19/zloader-installs-remote-access-backdoors-and-delivers-cobalt-strike/
author: Nasreddine Bencherchali (Nextron Systems), X__Junior (Nextron Systems)
date: 2022-11-30
modified: 2023-08-09
tags:
- attack.execution
logsource:
category: process_creation
product: windows
detection:
selection_metadata:
- Image|endswith:
- '\gpg.exe'
- '\gpg2.exe'
- Product: 'GNU Privacy Guard (GnuPG)'
- Description: 'GnuPG’s OpenPGP tool'
selection_cli:
CommandLine|contains: '-passphrase'
selection_paths:
CommandLine|contains:
- ':\PerfLogs\'
- ':\Temp\'
- ':\Users\Public\'
- ':\Windows\Temp\'
- '\AppData\Local\Temp\'
- '\AppData\Roaming\'
condition: all of selection_*
falsepositives:
- Unknown
level: high
title: File Decryption Using Gpg4win
id: 037dcd71-33a8-4392-bb01-293c94663e5a
status: test
description: Detects usage of Gpg4win to decrypt files
references:
- https://blogs.vmware.com/security/2022/11/batloader-the-evasive-downloader-malware.html
- https://www.gpg4win.de/documentation.html
- https://news.sophos.com/en-us/2022/01/19/zloader-installs-remote-access-backdoors-and-delivers-cobalt-strike/
author: Nasreddine Bencherchali (Nextron Systems)
date: 2023-08-09
tags:
- attack.execution
logsource:
category: process_creation
product: windows
detection:
selection_metadata:
- Image|endswith:
- '\gpg.exe'
- '\gpg2.exe'
- Description: 'GnuPG’s OpenPGP tool'
selection_cli:
CommandLine|contains|all:
- ' -d '
- 'passphrase'
condition: all of selection_*
falsepositives:
- Unknown
level: medium
title: File Encryption Using Gpg4win
id: 550bbb84-ce5d-4e61-84ad-e590f0024dcd
status: test
description: Detects usage of Gpg4win to encrypt files
references:
- https://blogs.vmware.com/security/2022/11/batloader-the-evasive-downloader-malware.html
- https://www.gpg4win.de/documentation.html
- https://news.sophos.com/en-us/2022/01/19/zloader-installs-remote-access-backdoors-and-delivers-cobalt-strike/
author: Nasreddine Bencherchali (Nextron Systems)
date: 2023-08-09
tags:
- attack.execution
logsource:
category: process_creation
product: windows
detection:
selection_metadata:
- Image|endswith:
- '\gpg.exe'
- '\gpg2.exe'
- Description: 'GnuPG’s OpenPGP tool'
selection_cli:
CommandLine|contains|all:
- ' -c '
- 'passphrase'
condition: all of selection_*
falsepositives:
- Unknown
level: medium