Malicious WannaCry Decryptor Launching Tor via process_creation

ATT&CK techniques

Impact

Recon
Resource Dev
Initial Access
Execution
Persistence
Priv Esc
Defense Evasion
Cred Access
Discovery
Lateral Movement
Collection
C2
Exfiltration
Impact
- T1486Data Encrypted for Impact

What it detects

This rule detects the WannaCry ransom note component WanaDecryptor spawning the bundled tor.exe used for anonymous communication with the operators. This activity supports the ransomware payment and command channel over the Tor network. Its presence confirms a WannaCry infection reaching the ransom stage.

Reporting behind it

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Malicious WannaCry Decryptor Launching Tor via process_creation

Pivot detection · T1486 · 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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