Suspicious TrueConf Update Chain Spawning Temporary Executable in Operation TrueChaos

ATT&CK techniques

Initial Access

Recon
Resource Dev
Initial Access
- T1195.002Compromise Software Supply Chain
Execution
Persistence
Priv Esc
Defense Evasion
Cred Access
Discovery
Lateral Movement
Collection
C2
Exfiltration
Impact

What it detects

This rule detects trueconf_windows_update.exe launching a .tmp executable, the supply-chain execution chain observed in Operation TrueChaos where a trojanized TrueConf updater drops and runs a Havoc payload. A signed-looking updater executing a temporary binary is anomalous and marks the initial loader stage.

Reporting behind it

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Suspicious TrueConf Update Chain Spawning Temporary Executable in Operation TrueChaos

Pivot detection · T1195.002 · 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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