alert http $EXTERNAL_NET any -> $HOME_NET any (msg:"ET TROJAN Possible Covenant Framework Grunt Stager HTTP Download (DynamicInvoke?)"; flow:established,to_client; file_data; content:"toStream(assembly_str)"; content:"delegate.DynamicInvoke(array.ToArray()).CreateInstance("; distance:0; fast_pattern; reference:url,; reference:url,; classtype:trojan-activity; sid:2027796; rev:1; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, deployment Perimeter, signature_severity Major, created_at 2019_08_04, updated_at 2019_08_04;)

Added 2019-08-05 18:56:07 UTC

Topic revision: r1 - 2019-08-05 - TWikiGuest
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