Versions (6)
Version DetailsCurrent
Rev: 3 • Apr 28, 2023, 12:00 PMET MALWARE Win32/Cryptbotv2 CnC Activity (POST) M2
alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Win32/Cryptbotv2 CnC Activity (POST) M2"; flow:established,to_server; http.method; content:"POST"; http.uri; content:".php"; http.request_body; content:"form-data|3b 20|name=|22|files|5b 5d 22 3b 20|"; fast_pattern; http.header_names; content:"|0d 0a|Content-Type|0d 0a|Host|0d 0a|Content-Length|0d 0a|"; startswith; content:!"|0d 0a|Referer|0d 0a|"; classtype:trojan-activity; sid:2045231; rev:3; metadata:created_at 2023_04_28, malware_family Win32_Cryptbotv2, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2024_03_13;)
Apr 28, 2023, 12:00 PM
Mar 13, 2024, 12:00 PM
Sep 21, 2024, 3:00 AM
Aug 25, 2025, 9:35 PM
rules/emerging-malware.rules