Suspicious REMCOS Screenshot Capture File via file_event

ATT&CK techniques

Collection

Recon
Resource Dev
Initial Access
Execution
Persistence
Priv Esc
Defense Evasion
Cred Access
Discovery
Lateral Movement
Collection
- T1113Screen Capture
C2
Exfiltration
Impact

What it detects

This rule detects creation of screenshot image files matching the REMCOS RAT naming convention that prefixes captures with time_ followed by a timestamp and a jpg extension. The malware periodically captures the victim screen for surveillance and stores images using this pattern. Discovery of such files indicates active spyware collection.

Reporting behind it

Related detections9 linkedT1113 — drag to rearrange

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Windows Registry: EnablePeriodicBackup value set for periodic system hive backups

Windows Recall Enabled by Deleting DisableAIDataAnalysis Registry Value

Windows Recall Enabled by Registry: DisableAIDataAnalysis Set to 0 (Windows)

Suspicious REMCOS Screenshot Capture File via file_event

Pivot detection · T1113 · 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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