step-security Jul 29, 2026 · Crawled Jul 29, 2026

Dev Machine Guard Now Inventories AI Agent Skills on Developer Machines

2 IoCs 1 Malware

AI Summary

The article details an active threat involving malicious AI agent skills used in supply chain attacks, specifically citing the ClawHavoc campaign which distributed the Atomic Stealer (AMOS) malware through compromised skills. These skills, which can execute scripts with developer privileges, have been found to contain malicious payloads capable of exfiltrating SSH keys and other sensitive data. The article also references the Miasma worm and Cline v2.3.0 compromise as part of a broader trend of attacks targeting AI coding agent ecosystems. Security teams are warned about the lack of visibility into skill inventories, enabling unchecked propagation of malicious or vulnerable skills across developer environments.

AI-extracted · verify before operational use

Extracted Entities 1 found

Malware AMOS →

Indicators of Compromise 2 extracted

Type	Value	Detail
GitHub Repo	skills.sh	Details →
Filename	SKILL.md	Details →

MITRE ATT&CK TTPs 36 techniques

T1003 OS Credential Dumping · Credential Access T1013 T1013 T1016 System Network Configuration Discovery · Discovery T1021.001 Remote Desktop Protocol · Lateral Movement T1027 Obfuscated Files or Information · Defense Evasion T1048 Exfiltration Over Alternative Protocol · Exfiltration T1055 Process Injection · Defense Evasion T1056.001 Keylogging · Collection T1056.002 GUI Input Capture · Collection T1059.001 PowerShell · Execution T1059.004 Unix Shell · Execution T1068 Exploitation for Privilege Escalation · Privilege Escalation T1069.001 Local Groups · Discovery T1070.004 File Deletion · Defense Evasion T1071 Application Layer Protocol · Command And Control T1071.001 Web Protocols · Command And Control T1071.004 DNS · Command And Control T1078 Valid Accounts · Defense Evasion T1078.001 Default Accounts · Defense Evasion T1078.004 Cloud Accounts · Defense Evasion T1082 System Information Discovery · Discovery T1083 File and Directory Discovery · Discovery T1086 T1086 T1090 Proxy · Command And Control T1105 Ingress Tool Transfer · Command And Control T1136.001 Local Account · Persistence T1204.002 Malicious File · Execution T1210 Exploitation of Remote Services · Lateral Movement T1218.011 Rundll32 · Defense Evasion T1485 Data Destruction · Impact T1497 Virtualization/Sandbox Evasion · Defense Evasion T1499.004 Application or System Exploitation · Impact T1543.001 Launch Agent · Persistence T1548.002 Bypass User Account Control · Privilege Escalation T1557 Adversary-in-the-Middle · Credential Access T1566 Phishing · Initial Access