ET MALWARE TA457 Backdoor CnC Activity

Query · suricata

flow:established,to_server;
content:"|23|2"; startswith;
content:"0000|7c|auto|7c|1|23|"; distance:1; within:13; fast_pattern;
content:"|23|"; endswith;
Raw source ET MALWARE TA457 Backdoor CnC Activity · Suricata
Esc
Published by Emerging Threats Open ↗, licensed under BSD 3-Clause ↗. Line breaks added for readability; the rule is otherwise unchanged. 
alert tcp $HOME_NET any -> $EXTERNAL_NET 1024: (
    msg:"ET MALWARE TA457 Backdoor CnC Activity";
    flow:established,to_server;
    content:"|23|2"; startswith;
    content:"0000|7c|auto|7c|1|23|"; distance:1; within:13; fast_pattern;
    content:"|23|"; endswith;
    reference:url,twitter.com/RedDrip7/status/1537389704374431744;
    reference:md5,29b6b195cf0671901b75b7d2ac6814f6;
    classtype:command-and-control;
    sid:2037019; rev:1;
    metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2022_06_16, deployment Perimeter, malware_family TA457, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2022_08_29;
)

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