Versions (5)
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Rev: 1 • Mar 24, 2021, 12:00 PMET MALWARE Win32/Girostat Stealer (POST)
alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Win32/Girostat Stealer (POST)"; flow:established,to_server; http.method; content:"POST"; http.uri; content:".php"; endswith; http.content_type; content:"multipart/form-data|3b 20|boundary=---------------------------"; startswith; http.request_body; content:"name=|22|info|22 0d 0a|"; content:"name=|22|debug1|22 0d 0a|"; distance:0; content:"name=|22|debug2|22 0d 0a|"; fast_pattern; content:"filename=|22|"; distance:0; http.header_names; content:!"Referer"; content:!"Accept"; reference:md5,934058124782476cdbe7866c4ceed167; classtype:trojan-activity; sid:2032319; rev:1; metadata:attack_target Client_Endpoint, created_at 2021_03_24, deployment Perimeter, malware_family Win32_Girostat, performance_impact Low, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2021_03_24;)
Mar 24, 2021, 12:00 PM
Mar 24, 2021, 12:00 PM
Sep 21, 2024, 3:00 AM
Sep 12, 2025, 9:34 PM
rules/emerging-malware.rules