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Rev: 2 • Feb 17, 2020, 12:00 PMET MALWARE Win32/Sarwent Initial Checkin
alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Win32/Sarwent Initial Checkin"; flow:established,to_server; flowbits:set,ET.sarwent.1; http.method; content:"GET"; http.uri; content:"/gate/test"; bsize:10; fast_pattern; http.user_agent; content:"Opera"; startswith; http.header_names; content:"|0d 0a|Host|0d 0a|Connection|0d 0a|User-Agent|0d 0a|Accept|0d 0a 0d 0a|"; classtype:command-and-control; sid:2029474; rev:2; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2020_02_17, deployment Perimeter, malware_family Sarwent, performance_impact Low, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2020_02_17;)
Feb 17, 2020, 12:00 PM
Feb 17, 2020, 12:00 PM
Sep 21, 2024, 3:00 AM
Sep 22, 2025, 9:34 PM
rules/emerging-malware.rules