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S1164malware

UPSTYLE

UPSTYLE is a Python-based backdoor associated with exploitation of Palo Alto firewalls using CVE-2024-3400 in early 2024. UPSTYLE has only been observed in relation to this exploitation activity, which involved attempted install on compromised devices by the threat actor UTA0218.

Platforms: Network Devices, Linux

MITRE ATT&CK ↗

Linked entities · 12

usesT1140Deobfuscate/Decode Files or Infor…usesT1685.006Clear Linux or Mac System Logs usesT1027.013Encrypted/Encoded File usesT1036Masquerading usesT1070.004File Deletion usesT1001.001Junk Data usesT1070.006Timestomp usesT1102.003One-Way Communication usesT1057Process Discovery usesT1059.006Python usesT1665Hide Infrastructure usesT1546Event Triggered Execution