Suspicious Payload Download and Execution via curl chmod 777 (via process_creation)

ATT&CK techniques

Execution → C2

Recon
Resource Dev
Initial Access
Execution
- T1059.004Unix Shell
Persistence
Priv Esc
Defense Evasion
Cred Access
Discovery
Lateral Movement
Collection
C2
- T1105Ingress Tool Transfer
Exfiltration
Impact

What it detects

This rule detects a download-and-run chain that fetches a file with curl or wget and marks it world-executable with chmod 777 before running it, the delivery routine used after exploiting the React Server Components flaws to stage XMRig, Mirai and Cobalt Strike CrossC2. Chaining retrieval, permission change and execution stages a remote binary on the compromised host.

Reporting behind it

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Suspicious Payload Download and Execution via curl chmod 777 (via process_creation)

Pivot detection · T1059.004 · 9 related

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