BUSHWALK — Malware Profile
BUSHWALK is a web shell written in Perl that was inserted into the legitimate querymanifest.cgi file on compromised Ivanti Connect Secure VPNs during Cutting Edge.
MITRE ATT&CK techniques (6)
- T1027 Obfuscated Files or Information
- T1105 Ingress Tool Transfer
- T1140 Deobfuscate/Decode Files or Information
- T1205 Traffic Signaling
- T1505.003 Web Shell
- T1554 Compromise Host Software Binary
Attributed threat actors
- UNC5221 machine-inferred link