Vendor-native detections for T1497.003

3 vendor-native detections · ready to paste into your SIEM · cross-linked to ATT&CK

technique T1497.003 ×

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Detections

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Splunk Original SPL T1497.003 ↗

Ping Sleep Batch Command

The following analytic identifies the execution of ping sleep batch commands. It leverages data from Endpoint Detection and Response (EDR) agents, focusing on process and parent process command-line details. This activity is significant as it indicates an attempt to delay malicious code execution, potentially evading detection or sandbox analysis. If confirmed malicious, this technique allows attackers to bypass security measures, making it harder to detect and analyze their activities, thereby increasing the risk of prolonged unauthorized access and potential data exfiltration.

Show query

| tstats `security_content_summariesonly`
  count min(_time) as firstTime
        max(_time) as lastTime

FROM datamodel=Endpoint.Processes WHERE
(
    Processes.parent_process= "*ping*"
    Processes.parent_process = *-n*
    Processes.parent_process IN (
        "*& *",
        "*&amp;*",
        "*&C:*",
        "*&gt;*",
        "*>*"
    )
)
OR
(
    (
        Processes.process_name= "ping.exe"
        OR
        Processes.original_file_name= "ping.exe"
    )
    Processes.process = *-n*
    Processes.process IN (
        "*& *",
        "*&amp;*",
        "*&C:*",
        "*&gt;*",
        "*>*"
    )
)

BY Processes.action Processes.dest Processes.original_file_name
   Processes.parent_process Processes.parent_process_exec
   Processes.parent_process_guid Processes.parent_process_id
   Processes.parent_process_name Processes.parent_process_path
   Processes.process Processes.process_exec Processes.process_guid
   Processes.process_hash Processes.process_id Processes.process_integrity_level
   Processes.process_name Processes.process_path Processes.user
   Processes.user_id Processes.vendor_product

| `drop_dm_object_name("Processes")`
| `security_content_ctime(firstTime)`
| `security_content_ctime(lastTime)`
| `ping_sleep_batch_command_filter`

Splunk Original SPL T1497.003 ↗

Windows Time Based Evasion

The following analytic detects potentially malicious processes that initiate a ping delay using an invalid IP address. It leverages data from Endpoint Detection and Response (EDR) agents, focusing on command-line executions involving "ping 0 -n". Malware like NJRAT was observed using this technique to introduce time delays for evasion tactics, such as delaying self-deletion. If confirmed malicious, this activity could indicate an active infection attempting to evade detection, potentially leading to further compromise and persistence within the environment.

Show query

| tstats `security_content_summariesonly`
  count min(_time) as firstTime
        max(_time) as lastTime

FROM datamodel=Endpoint.Processes WHERE

Processes.process_name = "ping.exe"
(
    Processes.parent_process IN (
        "*ping  0 -n *",
        "*ping 0 -n *",
        "*ping.exe  0 -n *",
        "*ping.exe 0 -n *"
    )
    OR
    Processes.process IN (
        "*ping  0 -n *",
        "*ping 0 -n *",
        "*ping.exe  0 -n *",
        "*ping.exe 0 -n *"
    )
)

BY Processes.action Processes.dest Processes.original_file_name
   Processes.parent_process Processes.parent_process_exec
   Processes.parent_process_guid Processes.parent_process_id
   Processes.parent_process_name Processes.parent_process_path
   Processes.process Processes.process_exec Processes.process_guid
   Processes.process_hash Processes.process_id Processes.process_integrity_level
   Processes.process_name Processes.process_path Processes.user
   Processes.user_id Processes.vendor_product

| `drop_dm_object_name("Processes")`
| `security_content_ctime(firstTime)`
| `security_content_ctime(lastTime)`
| `windows_time_based_evasion_filter`

Splunk Original SPL T1497.003 ↗

Windows Time Based Evasion via Choice Exec

The following analytic detects the use of choice.exe in batch files as a delay tactic, a technique observed in SnakeKeylogger malware. It leverages data from Endpoint Detection and Response (EDR) agents, focusing on process names and command-line executions. This activity is significant as it indicates potential time-based evasion techniques used by malware to avoid detection. If confirmed malicious, this behavior could allow attackers to execute code stealthily, delete malicious files, and persist on compromised hosts, making it crucial for SOC analysts to investigate promptly.

Show query

| tstats `security_content_summariesonly` count min(_time) as firstTime max(_time) as lastTime FROM datamodel=Endpoint.Processes
  WHERE Processes.process_name =choice.exe  Processes.process = "*/T*"  Processes.process = "*/N*"
  BY Processes.action Processes.dest Processes.original_file_name
     Processes.parent_process Processes.parent_process_exec Processes.parent_process_guid
     Processes.parent_process_id Processes.parent_process_name Processes.parent_process_path
     Processes.process Processes.process_exec Processes.process_guid
     Processes.process_hash Processes.process_id Processes.process_integrity_level
     Processes.process_name Processes.process_path Processes.user
     Processes.user_id Processes.vendor_product
| `drop_dm_object_name(Processes)`
| `security_content_ctime(firstTime)`
| `security_content_ctime(lastTime)`
| `windows_time_based_evasion_via_choice_exec_filter`

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