Suspicious sqlcipher Decryption of Signal Database by WAVESIGN (via process_creation)

ATT&CK techniques

Cred Access → Collection

Recon
Resource Dev
Initial Access
Execution
Persistence
Priv Esc
Defense Evasion
Cred Access
- T1552.001Credentials In Files
Discovery
Lateral Movement
Collection
- T1005Data from Local System
C2
Exfiltration
Impact

What it detects

This rule detects sqlcipher.exe being run against a Signal SQLite database, the decryption step in the WAVESIGN batch tooling used by Russia-aligned actors to read Signal message stores before rclone exfiltration. Command line decryption of a messaging database indicates targeted communications theft.

Reporting behind it

Related detections9 linkedT1552.001 — drag to rearrange

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Suspicious sqlcipher Decryption of Signal Database by WAVESIGN (via process_creation)

Pivot detection · T1552.001 · 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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