Suspicious WezRat Keylog File in Temp Directory

ATT&CK techniques

Cred Access → Collection

Recon
Resource Dev
Initial Access
Execution
Persistence
Priv Esc
Defense Evasion
Cred Access
- T1056.001Keylogging
Discovery
Lateral Movement
Collection
- T1056.001Keylogging
C2
Exfiltration
Impact

What it detects

This rule detects creation of the fixed keylog output file 10105060.txt in the user Temp directory used by the WezRat backdoor. The malware records captured keystrokes to this static filename before exfiltration. Detecting the artifact confirms keylogging activity on the host.

Reporting behind it

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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 WezRat Keylog File in Temp Directory

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.

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