[Snort-sigs] Win.Trojan.Dunihi

Joel Esler (jesler) jesler at cisco.com
Tue May 8 21:29:06 EDT 2018


We do have a rule for GandCrab malware.  It's sid 45694.  Available in our subscriber ruleset at https://www.snort.org/downloads#rules

--
Joel Esler
Sr. Manager
Open Source, Design, Web, and Education
Talos Group
http://www.talosintelligence.com




On May 8, 2018, at 10:23 AM, Ernest Johnson via Snort-sigs <snort-sigs at lists.snort.org<mailto:snort-sigs at lists.snort.org>> wrote:

Phill

do you have a signature for Gand Crab Ransomware

to alert or block it ?

On Mon, May 7, 2018 at 12:06 PM, Y M via Snort-sigs <snort-sigs at lists.snort.org<mailto:snort-sigs at lists.snort.org>> wrote:
[Boxbe]<https://www.boxbe.com/overview> [http://www.boxbe.com/stfopen?tc_serial=39029866946&tc_rand=514401434&utm_source=stf&utm_medium=email&utm_campaign=ANNO_CLEANUP_ADD&utm_content=001]  This message is eligible for Automatic Cleanup! (snort-sigs at lists.snort.org<mailto:snort-sigs at lists.snort.org>) Add cleanup rule<https://www.boxbe.com/popup?url=https%3A%2F%2Fwww.boxbe.com%2Fcleanup%3Fkey%3DIk6H7YmJlqLVFBg5q%252FXyPeMCjrDP%252BTGxm6dIFxTyM4I%253D%26token%3DaDn4g3lOf29q0IDXR%252F24FVz6eC12yhKWSZBWSDTcvHDTnWhCGMPt%252BVMWzbVL633ogkDfWBhr2Im415Cp0zmDS%252FdEX65I0bD9gOYkvSvXo0PDoRacZfL2WX%252BQQrL5aEuiTJoAi136s5uciXhxfHNS9Q%253D%253D&tc_serial=39029866946&tc_rand=514401434&utm_source=stf&utm_medium=email&utm_campaign=ANNO_CLEANUP_ADD&utm_content=001> | More info<http://blog.boxbe.com/general/boxbe-automatic-cleanup?tc_serial=39029866946&tc_rand=514401434&utm_source=stf&utm_medium=email&utm_campaign=ANNO_CLEANUP_ADD&utm_content=001>

Hi,

Pcap is available for this as retrieved from the reference.

# --------------------
# Date: 2018-05-07
# Title: JacksBot, Dunihi
# Tests: pcap
# Reference: https://twitter.com/James_inthe_box/status/993508601862832130, https://app.any.run/tasks/7533e2da-24b1-424c-8624-dbb764852020

alert tcp $HOME_NET any -> $EXTERNAL_NET 1024: (msg:"MALWARE-CNC Win.Trojan.Dunihi outbound connection"; flow:to_server,established; content:"POST"; http_method; content:"/is-ready"; fast_pattern:only; http_uri; content:"|3C 7C 3E|"; http_header; metadata:ruleset community, service http; reference:url,twitter.com/James_inthe_box/status/993508601862832130<http://twitter.com/James_inthe_box/status/993508601862832130>; reference:url,www.virustotal.com/#/file/be442a5f8be3bf720236f71a613a534b8aa82b16b0daf8ff84a59bcb92e19e7d/detection<http://www.virustotal.com/#/file/be442a5f8be3bf720236f71a613a534b8aa82b16b0daf8ff84a59bcb92e19e7d/detection>; classtype:trojan-activity; sid:8000048; rev:1;)

Thanks.
YM

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Ernest Johnson
504 621 2520
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