Versions (4)
Version DetailsCurrent
Rev: 3 • Jan 16, 2018, 12:00 PMET MALWARE [PTsecurity] Trojan.Downloader VBA Script obfuscation (binary_getter)
alert http $EXTERNAL_NET any -> $HOME_NET any (msg:"ET MALWARE [PTsecurity] Trojan.Downloader VBA Script obfuscation (binary_getter)"; flow:established,to_client; threshold:type limit, track by_src, count 1, seconds 30; http.stat_code; content:"200"; file.data; content:"(Chr((((asc(Mid("; depth:300; content:",1,1))-65))*25+(asc(Mid("; within:100; content:",2,1))-65)-"; within:100; reference:md5,bad07f85a7baaeaa8aeb72997712aa98; classtype:trojan-activity; sid:2025202; rev:3; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2018_01_16, deployment Perimeter, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2020_08_24;)
Jan 16, 2018, 12:00 PM
Aug 24, 2020, 12:00 PM
Sep 21, 2024, 3:00 AM
Sep 29, 2025, 9:34 PM
rules/emerging-malware.rules