Malicious VenomRAT Offline Keylog File Creation via file_event

PremiumReviewedSigma · High · v1
Product
windows
Category
file_event
Author
HuntRule
Published
2026-08-02
Updated
2026-08-28

ATT&CK techniques

Cred Access → Collection
  1. Recon

  2. Resource Dev

  3. Initial Access

  4. Execution

  5. Persistence

  6. Priv Esc

  7. Defense Evasion

  8. Discovery

  9. Lateral Movement

  10. C2

  11. Exfiltration

  12. Impact

What it detects

This rule detects creation of the DataLogs_keylog_offline keystroke capture file that VenomRAT writes under the user AppData MyData directory. This hardcoded artifact path marks active offline keylogging by the VenomRAT payload delivered through the fake CVE-2023-40477 proof-of-concept, indicating credential and data theft on the host.

Related detections9 linkedT1056.001 — drag to rearrange
Suspicious WezRat Keylog File in Temp Directory
Suspicious Larva-24009 Keylogger Log Staging in OneDrive Path (via file_event)
Suspicious Kimsuky AlphaSeed Artifacts in edge Hidden Directory (via file_event)
In-Memory Remcos RAT Keylog Store Created Under ProgramData rema (via file_event)
Possible Andariel Keylogger Output Archive Staged in Temp (via file_event)
Suspicious Parallax RAT Keylogger Output File Creation via File System (via file_event)
Suspicious BunnyLoader Keylog Capture File in AppData Temp (via file_event)
NjRAT Fileless Keylogger Storage via Registry Value (via registry_set)
Malicious Kimsuky Keylogger PowerShell Functions PokDoc and InfoKey (via ps_script)
Malicious VenomRAT Offline Keylog File Creation via file_event
Pivot detection · T1056.001 · 9 related

Detection content is published as a reviewed draft. Tune thresholds and exclusions against your own telemetry before enabling this rule for alerting.