alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET TROJAN MSIL/EasyLocker Ransomware CnC? Activity"; flow:established,to_server; content:"GET"; http_method; content:"Host|3a 20|noobcrypt"; fast_pattern; http_header; content:!"Referer|3a|"; http_header; pcre:"/\/(?:countdown|check)\/[a-f0-9]{30,45}\/(?:[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3})?$/Ui"; reference:md5,980342a5a783d7f6ce188c575d9ca97a; classtype:trojan-activity; sid:2024320; rev:2;)

Added 2017-05-18 17:00:08 UTC


Topic revision: r1 - 2017-05-18 - TWikiGuest
 
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