Malicious Perl Reverse Shell Execution on Linux

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 perl one liner that opens a network socket and connects back to a remote host and hands it to a shell which the opportunistic Log4j campaign uses to spawn an interactive reverse shell after exploiting a vulnerable server.

Reporting behind it

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Malicious Perl Reverse Shell Execution on Linux

Pivot detection · T1059.004 · 9 related

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