Versions (4)
Version DetailsCurrent
Rev: 1 • Sep 21, 2022, 12:00 PMET MALWARE Win32/Cryptbotv2 CnC Activity (POST) M1
alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Win32/Cryptbotv2 CnC Activity (POST) M1"; flow:established,to_server; http.method; content:"POST"; http.uri; content:".php"; endswith; http.header_names; content:"|0d 0a|Content-Type|0d 0a|User-Agent|0d 0a|Host|0d 0a|"; startswith; content:!"Referer"; http.request_body; content:"form-data|3b 20|name=|22|files|5b 5d 22 3b 20|"; fast_pattern; reference:md5,859c659aee8b897aeebf4b87364cc6d1; reference:md5,df03805e4a11b88a7ea81909cd407647; reference:url,twitter.com/abuse_ch/status/1572477247780446209; classtype:trojan-activity; sid:2038918; rev:1; metadata:attack_target Client_Endpoint, created_at 2022_09_21, deployment Perimeter, malware_family Cryptbot, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2023_04_27;)
Sep 21, 2022, 12:00 PM
Apr 27, 2023, 12:00 PM
Sep 21, 2024, 3:00 AM
Sep 1, 2025, 8:35 PM
rules/emerging-malware.rules