Suspicious Sysinternals EULA Acceptance Registry Write Linked to INC Ransomware

ATT&CK techniques

Execution

Recon
Resource Dev
Initial Access
Execution
- T1047Windows Management Instrumentation
Persistence
Priv Esc
Defense Evasion
Cred Access
Discovery
Lateral Movement
Collection
C2
Exfiltration
Impact

What it detects

This rule detects the EulaAccepted registry value being written under a Sysinternals product key, indicating first-run command-line use of a Sysinternals tool as seen in INC ransomware intrusions. Because operators use PsExec and similar tools with the -accepteula flag, an unexpected EULA write on a server can reveal attacker tool staging, though administrators also trigger it legitimately.

Reporting behind it

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Suspicious Sysinternals EULA Acceptance Registry Write Linked to INC Ransomware

Pivot detection · T1047 · 9 related

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