Suspicious Interlock Fake Updater Executable Execution

ATT&CK techniques

Execution → Defense Evasion

Recon
Resource Dev
Initial Access
Execution
- T1204.002Malicious File
Persistence
Priv Esc
Defense Evasion
- T1036Masquerading
Cred Access
Discovery
Lateral Movement
Collection
C2
Exfiltration
Impact

What it detects

This rule detects execution of Interlock loader binaries named with the upd_ prefix, dropped by fake browser and Teams updater phishing pages. This naming convention is used by Interlock to disguise its payloads as software updates.

Reporting behind it

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Suspicious Interlock Fake Updater Executable Execution

Pivot detection · T1204.002 · 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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