alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Steam Stealer"; flow:established,to_server; http.method; content:"GET"; http.uri; content:"/uploads/images/201"; fast_pattern; pcre:"/\.png$/"; http.header_names; to_lowercase; content:!"|0d 0a|referer|0d 0a|"; content:!"|0d 0a|accept"; content:!"|0d 0a|user-agent|0d 0a|"; reference:md5,5f50e810668942e8d694faeabab08260; reference:url,blog.0x3a.com/post/107195908164/analysis-of-steam-stealers-and-the-steam-stealer; classtype:trojan-activity; sid:2020095; rev:7; metadata:created_at 2015_01_06, signature_severity Major, updated_at 2024_04_28;)