Suspicious chmod 777 on Dropped Payload in Temp Directory

ATT&CK techniques

Execution

Recon
Resource Dev
Initial Access
Execution
- T1059.004Unix Shell
Persistence
Priv Esc
Defense Evasion
Cred Access
Discovery
Lateral Movement
Collection
C2
Exfiltration
Impact

What it detects

This rule detects a process granting world-writable and executable permissions to a file staged under /tmp, a step used to make a downloaded exploit payload runnable. During React2Shell exploitation the actor dropped an architecture-specific binary into /tmp and made it executable before running it. Broad chmod 777 on temp payloads is a common post-compromise action that precedes execution of second-stage tooling.

Reporting behind it

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Suspicious chmod 777 on Dropped Payload in Temp Directory

Pivot detection · T1059.004 · 9 related

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