Malicious Diicot Spreader Activity in Hidden update-logs Directory

ATT&CK techniques

Cred Access → Lateral Movement

Recon
Resource Dev
Initial Access
Execution
Persistence
Priv Esc
Defense Evasion
Cred Access
- T1110.001Password Guessing
Discovery
Lateral Movement
- T1021.004SSH
Collection
C2
Exfiltration
Impact

What it detects

This rule detects process activity referencing the hidden directory /var/tmp/.update-logs which the Diicot threat group uses to stage its SSH brute-force spreader on compromised Linux hosts. This is important because this concealed path is a campaign-specific artifact where Diicot drops its worming and mining components so any process touching it strongly indicates an active Diicot infection.

Reporting behind it

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Malicious Diicot Spreader Activity in Hidden update-logs Directory

Pivot detection · T1021.004 · 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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