alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Win32/Unknown Stealer CnC Exfil (POST)"; flow:established,to_server; http.method; content:"POST"; http.header_names; content:!"User-Agent"; http.request_body; content:"|50 4b|"; startswith; pcre:"/(?:[a-z0-9]{8})\x2d(?:[a-z0-9]{4})\x2d(?:[a-z0-9]{4})\x2d(?:[a-z0-9]{4})\x2d(?:[a-z0-9]{12})\x2etxt/R"; content:"/cookies.sqlite"; fast_pattern; content:"logins.json"; content:"Login Data"; reference:md5,0004c1153084b2e808b65e7fd2788cb9; reference:url,twitter.com/g0njxa/status/1677297278371889153; classtype:trojan-activity; sid:2047615; rev:1; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2023_08_10, deployment Perimeter, confidence High, signature_severity Critical, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2023_08_10;)