ET MALWARE Win32/Unknown Stealer Command Response (filegrab) (Inbound)

Query · suricata

flow:established,to_client;
content:"|2e|txt|0d 0a 2e|doc|0d 0a 2e|bd|0d 0a 2e|sql";
dsize:21; startswith; fast_pattern;
Raw source ET MALWARE Win32/Unknown Stealer Command Response (filegrab) (Inbound) · Suricata
Esc
Published by Emerging Threats Open ↗, licensed under BSD 3-Clause ↗. Line breaks added for readability; the rule is otherwise unchanged. 
alert tcp-pkt $EXTERNAL_NET 1024: -> $HOME_NET any (
    msg:"ET MALWARE Win32/Unknown Stealer Command Response (filegrab) (Inbound)";
    flow:established,to_client;
    content:"|2e|txt|0d 0a 2e|doc|0d 0a 2e|bd|0d 0a 2e|sql";
    dsize:21; startswith; fast_pattern;
    reference:md5,62c49cd81d701e2ad31009bb012758b7;
    reference:url,twitter.com/James_inthe_box/status/1539639477676568576;
    classtype:command-and-control;
    sid:2037089; rev:1;
    metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2022_06_22, deployment Perimeter, confidence Medium, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2022_06_22;
)

Detection rules belong to the projects that publish them and remain under their own licenses. This site indexes and links to them; it claims no rights in them.