Threadlinqs IntelligenceStart free

Threat video1:00

cPGuard OPSSHIELD Update Hijack: Detection & IOCs

Attackers pushed a malicious cPGuard update that backdoors Linux servers and steals password hashes: 16 IOCs, 9 detection rules, and a free Splunk SPL rule.

Read the full threat intel for cPGuard OPSSHIELD Update Hijack: Detection & IOCs →

Chapters

  1. 0:00The hookHackers backdoored cPGuard updates to harvest root credentials.
  2. 0:05The storyCredentials compromised, update channel hijacked.
  3. 0:13Attack pathStolen credentials exposed the update channel.
  4. 0:28AttributionNo threat actor is attributed.
  5. 0:33Indicators of compromise13 indicators to hunt: 3 file names, 9 paths and 1 package name.
  6. 0:39MITRE ATT&CK techniques9 ATT&CK techniques, from initial access to collection.
  7. 0:44Remediation4 steps now: Identify hosts that installed an affected version.
  8. 0:50Detection rules9 detection rules, in SPL, KQL and Sigma.
Transcript

0:00Hackers backdoored cPGuard updates to harvest root credentials.

0:05Credentials compromised, update channel hijacked.

0:08As root, script harvested passwords and SSH keys.

0:13Stolen credentials exposed the update channel.

0:16The malicious script ran as root.

0:18Passwords, hashes, and SSH files harvested.

0:22All data uploaded to licensing servers.

0:25A backdoor shell was installed.

0:29No threat actor is attributed. Confidence: low.

0:3313 indicators to hunt: 3 file names, 9 paths and 1 package name.

0:399 ATT&CK techniques, from initial access to collection.

0:444 steps now: Identify hosts that installed an affected version.

0:519 detection rules, in SPL, KQL and Sigma.

0:56Threadlinqs. The unified security engineering platform.