Versions (3)
Version DetailsCurrent
Rev: 1 • Dec 6, 2023, 12:00 PMET MALWARE SnappyTCP Reverse Shell Client Checkin M2
alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE SnappyTCP Reverse Shell Client Checkin M2"; flow:established,to_server; http.request_line; content:"GET|20 2f|ssl|2e|php|20|HTTP|2f|1|2e|1"; bsize:21; http.header_names; content:"|0d 0a|Host|0d 0a|Hostname|0d 0a|Connection|0d 0a 0d 0a|"; bsize:32; fast_pattern; http.connection; content:"close"; bsize:5; reference:url,pwc.com/gx/en/issues/cybersecurity/cyber-threat-intelligence/tortoise-and-malwahare.html; classtype:trojan-activity; sid:2049529; rev:1; metadata:affected_product Linux, attack_target Client_Endpoint, created_at 2023_12_06, deployment Perimeter, deployment SSLDecrypt, confidence High, signature_severity Critical, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2023_12_06;)
Dec 6, 2023, 12:00 PM
Dec 6, 2023, 12:00 PM
Dec 6, 2023, 11:00 PM
Aug 18, 2025, 8:35 PM
rules/emerging-malware.rules