ET MALWARE Golang Aurora Stealer Exfil Activity

Query · suricata

flow:established,to_server;
content:"|7b 22|Browser|22 3a 22|"; startswith;
content:"|22 2c 22|Type|22 3a 22|"; distance:0;
content:"|22 2c 22|MasterKey|22 3a 22|"; distance:0;
content:"|22 2c 22|FileName|22 3a 22|"; distance:0;
content:"|22 2c 22|Cache|22 3a 22|"; distance:0;
target:src_ip;
Raw source ET MALWARE Golang Aurora Stealer Exfil 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-pkt $HOME_NET any -> $EXTERNAL_NET 8081 (
    msg:"ET MALWARE Golang Aurora Stealer Exfil Activity";
    flow:established,to_server;
    content:"|7b 22|Browser|22 3a 22|"; startswith;
    content:"|22 2c 22|Type|22 3a 22|"; distance:0;
    content:"|22 2c 22|MasterKey|22 3a 22|"; distance:0;
    content:"|22 2c 22|FileName|22 3a 22|"; distance:0;
    content:"|22 2c 22|Cache|22 3a 22|"; distance:0;
    reference:md5,0f2d69788bde79f421b28aa455758b18;
    reference:url,blog.sekoia.io/aurora-a-rising-stealer-flying-under-the-radar/;
    classtype:trojan-activity;
    sid:2039816; rev:1;
    metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2022_10_20, deployment Perimeter, malware_family AuroraStealer, performance_impact Low, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2022_11_21, former_sid 2852643;
    target:src_ip;
)

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