Versions (3)
Version DetailsCurrent
Rev: 3 • Feb 16, 2017, 12:00 PMET MALWARE Possibly Malicious Base64 Unicode WebClient DownloadString M1
alert http $EXTERNAL_NET any -> $HOME_NET any (msg:"ET MALWARE Possibly Malicious Base64 Unicode WebClient DownloadString M1"; flow:established,from_server; file_data; content:"VwBlAGIAQwBsAGkAZQBuAHQAKQAuAEQAbwB3AG4AbABvAGEAZABTAHQAcgBpAG4AZ"; reference:md5,2a0df97277ddb361cecf8726df6d78ac; classtype:trojan-activity; sid:2023941; rev:3; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2017_02_16, deployment Perimeter, confidence High, signature_severity Major, updated_at 2019_07_26;)
Feb 16, 2017, 12:00 PM
Jul 26, 2019, 12:00 PM
Sep 21, 2024, 3:00 AM
May 30, 2025, 12:04 AM
rules/emerging-malware.rules