2026-05-12HIGHA rogue Checkmarx Jenkins AST plugin build that hunts credentials was live for about 31 hours; TeamPCP claimed it
Checkmarx Jenkins AST Plugin
product · product:checkmarx-jenkins-ast-plugin
Coverage
1
first 2026-05-12 → last 2026-10-21
Latest activity
2026-05-12
A rogue Checkmarx Jenkins AST plugin build that hunts credentials was live for about 31 hours; TeamPCP…
Peak priority
high
1 high
Targets
technology
sectors: technology
Sources cited
7
7 hosts
Defender insights
What each entry about Checkmarx Jenkins AST Plugin tells a defender to do, newest first.
Exposure · detection
Story timeline
Hunting pivots
Releases covered
Checkmarx Jenkins AST Plugin
ATT&CK techniques (3 across 5 tactics)
3 techniques observed across 1 entry about this entity, derived from entry metadata and body evidence, never asserted without a published entry behind it · pinned to MITRE ATT&CK v20.0 · compare on the matrix · Navigator layer (JSON)
- Initial AccessValid Accounts · Supply Chain Compromise: Compromise Software Supply Chain
- PersistenceValid Accounts
- Privilege EscalationValid Accounts
- StealthValid Accounts
- Credential AccessUnsecured Credentials: Credentials In Files
Initial Access TA0001
T1078Valid Accounts×1
Adversaries may obtain and abuse credentials of existing accounts as a means of gaining Initial Access, Persistence, Privilege Escalation, or Defense Evasion. Compromised credentials may be used to bypass access controls placed on various resources on systems within the network and may even be used for persistent access to remote systems and externally available services, such as VPNs, Outlook Web Access, network devices, and remote desktop. Compromised credentials may also grant an adversary increased privilege to specific systems or access to restricted areas of the network. Adversaries may choose not to use malware or tools in conjunction with the legitimate access those credentials provide to make it harder to detect their presence.
Evidence: 2026-05-12/teampcp-unc6780-pcpjack-ecosystem-backdoors-the-checkmarx-je · ATT&CK page ↗
T1195.002Supply Chain Compromise: Compromise Software Supply Chain×1
Adversaries may manipulate application software prior to receipt by a final consumer for the purpose of data or system compromise. Supply chain compromise of software can take place in a number of ways, including manipulation of the application source code, manipulation of the update/distribution mechanism for that software, or replacing compiled releases with a modified version.
Evidence: 2026-05-12/teampcp-unc6780-pcpjack-ecosystem-backdoors-the-checkmarx-je · ATT&CK page ↗
Persistence TA0003
T1078Valid Accounts×1
Adversaries may obtain and abuse credentials of existing accounts as a means of gaining Initial Access, Persistence, Privilege Escalation, or Defense Evasion. Compromised credentials may be used to bypass access controls placed on various resources on systems within the network and may even be used for persistent access to remote systems and externally available services, such as VPNs, Outlook Web Access, network devices, and remote desktop. Compromised credentials may also grant an adversary increased privilege to specific systems or access to restricted areas of the network. Adversaries may choose not to use malware or tools in conjunction with the legitimate access those credentials provide to make it harder to detect their presence.
Evidence: 2026-05-12/teampcp-unc6780-pcpjack-ecosystem-backdoors-the-checkmarx-je · ATT&CK page ↗
Privilege Escalation TA0004
T1078Valid Accounts×1
Adversaries may obtain and abuse credentials of existing accounts as a means of gaining Initial Access, Persistence, Privilege Escalation, or Defense Evasion. Compromised credentials may be used to bypass access controls placed on various resources on systems within the network and may even be used for persistent access to remote systems and externally available services, such as VPNs, Outlook Web Access, network devices, and remote desktop. Compromised credentials may also grant an adversary increased privilege to specific systems or access to restricted areas of the network. Adversaries may choose not to use malware or tools in conjunction with the legitimate access those credentials provide to make it harder to detect their presence.
Evidence: 2026-05-12/teampcp-unc6780-pcpjack-ecosystem-backdoors-the-checkmarx-je · ATT&CK page ↗
Stealth TA0005
T1078Valid Accounts×1
Adversaries may obtain and abuse credentials of existing accounts as a means of gaining Initial Access, Persistence, Privilege Escalation, or Defense Evasion. Compromised credentials may be used to bypass access controls placed on various resources on systems within the network and may even be used for persistent access to remote systems and externally available services, such as VPNs, Outlook Web Access, network devices, and remote desktop. Compromised credentials may also grant an adversary increased privilege to specific systems or access to restricted areas of the network. Adversaries may choose not to use malware or tools in conjunction with the legitimate access those credentials provide to make it harder to detect their presence.
Evidence: 2026-05-12/teampcp-unc6780-pcpjack-ecosystem-backdoors-the-checkmarx-je · ATT&CK page ↗
Credential Access TA0006
T1552.001Unsecured Credentials: Credentials In Files×1
Adversaries may search local file systems and remote file shares for files containing insecurely stored credentials. These can be files created by users to store their own credentials, shared credential stores for a group of individuals, configuration files containing passwords for a system or service, or source code/binary files containing embedded passwords.
Evidence: 2026-05-12/teampcp-unc6780-pcpjack-ecosystem-backdoors-the-checkmarx-je · ATT&CK page ↗
Entries about Checkmarx Jenkins AST Plugin (1)
Co-occurring entities
Derived: referenced by the same focused operational entries (weekly summaries and report roundups don't count); ×N counts the shared entries.
Where this entity is cited
Source distribution
- bleepingcomputer.com1 (14%)
- checkmarx.com1 (14%)
- cloud.google.com1 (14%)
- github.com1 (14%)
- sentinelone.com1 (14%)
- socradar.io1 (14%)
- thehackernews.com1 (14%)
All cited sources (7)
- bleepingcomputer.comBleepingComputerhttps://www.bleepingcomputer.com/news/security/official-checkmarx-jenkins-package-compromised-with-infostealer/
- checkmarx.comCheckmarxhttps://checkmarx.com/blog/ongoing-security-updates/
- cloud.google.comGoogle Threat Intelligence Grouphttps://cloud.google.com/blog/topics/threat-intelligence/ai-vulnerability-exploitation-initial-access
- github.comGitHub Advisory Database (Aqua Security Trivy)https://github.com/advisories/GHSA-69fq-xp46-6x23
- sentinelone.comSentinelLABShttps://www.sentinelone.com/labs/cloud-worm-evicts-teampcp-and-steals-credentials-at-scale/
- socradar.ioSOCRadarhttps://socradar.io/blog/checkmarx-jenkins-plugin-teampcp-backdoor/
- thehackernews.comThe Hacker Newshttps://thehackernews.com/2026/05/teampcp-compromises-checkmarx-jenkins.html