Rule History

alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Win32/Sync-Scheduler Stealer Activity (POST)"; flow:established,to_server; http.method; content:"POST"; http.uri; content:".php"; endswith; http.header; content:"Accept|3a 20|multipart/*|0d 0a|"; startswith; fast_pattern; http.header_names; content:!"Referer|0d 0a|"; http.request_body; content:"Content-Disposition: form-data|3b 20|name=|22|file|22 3b 20|filename=|22 20|"; content:"Content-Type|3a 20|text/plain|3b 22 3b|"; reference:md5,004101dc501b9de8965e6b45debd07b6; reference:url,www.cyfirma.com/research/sync-scheduler-a-dedicated-document-stealer/; classtype:trojan-activity; sid:2051842; rev:1; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, affected_product Windows_11, attack_target Client_Endpoint, tls_state plaintext, created_at 2024_03_29, deployment Perimeter, malware_family Win32_Sync_Scheduler, performance_impact Low, confidence Medium, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2024_03_29; target:src_ip;)