ET MALWARE Observed TeamPCP litellm Supply Chain Attack Domain (checkmarx .zone in TLS SNI)
Sourceet/open
CreatedMarch 27, 2026
UpdatedMay 14, 2026
Classificationtrojan-activity
alert tls $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Observed TeamPCP litellm Supply Chain Attack Domain (checkmarx .zone in TLS SNI)"; flow:established,to_server; tls.sni; dotprefix; content:".checkmarx.zone"; endswith; fast_pattern; reference:url,www.wiz.io/blog/threes-a-crowd-teampcp-trojanizes-litellm-in-continuation-of-campaign; classtype:trojan-activity; sid:2068456; rev:1; metadata:attack_target Client_Endpoint, created_at 2026_03_27, deployment Perimeter, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2026_05_14;)
Metadata
attack targetClient_Endpoint
created at2026_03_27
deploymentPerimeter
confidenceHigh
signature severityMajor
tagDescription_Generated_By_Proofpoint_Nexus
updated at2026_05_14
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