ET MALWARE MSIL/Spy.Agent.CVT CnC Exfil

Query · suricata

flow:established,to_server;
http.method;
content:"POST";
http.host;
content:".onion"; endswith;
http.request_line;
content:".onion/stealer/"; fast_pattern;
http.uri;
content:"/stealer/"; startswith;
content:"?pwds="; distance:8;
content:"&cards="; within:12;
content:"&wlts="; within:8;
content:"&files="; within:10;
content:"&user="; distance:0;
content:"&ip="; distance:0;
Raw source ET MALWARE MSIL/Spy.Agent.CVT CnC Exfil · Suricata
Esc
Published by Emerging Threats Open ↗, licensed under BSD 3-Clause ↗. Line breaks added for readability; the rule is otherwise unchanged. 
alert http $HOME_NET any -> $EXTERNAL_NET any (
    msg:"ET MALWARE MSIL/Spy.Agent.CVT CnC Exfil";
    flow:established,to_server;
    http.method;
    content:"POST";
    http.host;
    content:".onion"; endswith;
    http.request_line;
    content:".onion/stealer/"; fast_pattern;
    http.uri;
    content:"/stealer/"; startswith;
    content:"?pwds="; distance:8;
    content:"&cards="; within:12;
    content:"&wlts="; within:8;
    content:"&files="; within:10;
    content:"&user="; distance:0;
    content:"&ip="; distance:0;
    reference:md5,c5ba2308ef1f4c2735f61c249076622d;
    reference:url,inquest.net/blog/2022/05/25/tandem-espionage;
    classtype:trojan-activity;
    sid:2036689; rev:1;
    metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2022_05_26, deployment Perimeter, malware_family MSIL_Spy_Agent_CVT, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2022_05_26;
)

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