ET MALWARE Reborn Stealer 2021 Exfil attempt via Telegram

Query · suricata

flow:established,to_server;
http.method;
content:"POST";
http.uri;
content:"/sendDocument?chat_id=";
content:"|26|caption|3d|";
content:"|f0 9f 8f b4 20|IP|3a 20|"; distance:0;
content:"|20|BASIC|20|INFORMATION|3a 0a 20 20 20 e2 88 9f 20|Passwords|20 2d 20|"; distance:0; fast_pattern;
Raw source ET MALWARE Reborn Stealer 2021 Exfil attempt via Telegram · Suricata
Esc
Published by Emerging Threats Open ↗, licensed under BSD 3-Clause ↗. Line breaks added for readability; the rule is otherwise unchanged. 
alert http $HOME_NET any -> $EXTERNAL_NET any (
    msg:"ET MALWARE Reborn Stealer 2021 Exfil attempt via Telegram";
    flow:established,to_server;
    http.method;
    content:"POST";
    http.uri;
    content:"/sendDocument?chat_id=";
    content:"|26|caption|3d|";
    content:"|f0 9f 8f b4 20|IP|3a 20|"; distance:0;
    content:"|20|BASIC|20|INFORMATION|3a 0a 20 20 20 e2 88 9f 20|Passwords|20 2d 20|"; distance:0; fast_pattern;
    reference:md5,f925449e1f939ca70b5f842d4fc55921;
    reference:url,github.com/alikaptanoglu/Reborn-Stealer-2021-SOURCE/;
    classtype:command-and-control;
    sid:2033209; rev:1;
    metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2021_06_30, deployment Perimeter, deployment SSLDecrypt, performance_impact Low, confidence Medium, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2021_06_30;
)

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