[Snort-sigs] Win.Trojan.Danabot

Y M snort at outlook.com
Mon Jun 4 13:22:53 EDT 2018


Hi,

Pcap is available for this one.

# --------------------
# Date: 2018-06-01
# Title: DanaBot - A new banking Trojan surfaces Down Under
# Tests: pcap
# Reference: https://www.proofpoint.com/us/threat-insight/post/danabot-new-banking-trojan-surfaces-down-under-0, https://www.virustotal.com/#/file/e59fdd99c210415e5097d9703bad950d38f448b3f98bb35f0bdc83ac2a41a60b/behavior, https://www.virustotal.com/#/file/6ece271a0088c88ed29f4b78eab00d0e7800da63757b79b6e6c3838f39aa7b69/behavior

alert tcp $HOME_NET any -> $EXTERNAL_NET $HTTP_PORTS (msg:"MALWARE-CNC Win.Trojan.Danabot loader outbound connection"; flow:to_server,established; content:"GET"; http_method; content:"/index.php?a="; fast_pattern:only; http_uri; content:"&b="; http_uri; content:"&c="; http_uri; content:"&d="; http_uri; content:"&e="; http_uri; content:!"Referer"; http_header;metadata:ruleset community, service http; reference:url,www.proofpoint.com/us/threat-insight/post/danabot-new-banking-trojan-surfaces-down-under-0; classtype:trojan-activity; sid:8000098; rev:1;)

alert tcp $HOME_NET any -> $EXTERNAL_NET $HTTP_PORTS (msg:"MALWARE-CNC Win.Trojan.Danabot outbound connection"; flow:to_server,established; content:"GET"; http_method; content:"/index.php?m="; fast_pattern:only; http_uri; content:"&a="; http_uri;  content:"&b="; http_uri; content:"&c="; http_uri; content:"&d="; http_uri; content:"&e="; http_uri; content:!"Referer"; http_header;metadata:ruleset community, service http; reference:url,www.proofpoint.com/us/threat-insight/post/danabot-new-banking-trojan-surfaces-down-under-0; classtype:trojan-activity; sid:8000099; rev:1;)

alert tcp $HOME_NET any -> $EXTERNAL_NET any (msg:"MALWARE-CNC Win.Trojan.Danabot outbound connection"; flow:to_server,established; dsize:<120; content:"|01|"; offset:8; content:"|3D|"; distance:15; content:"29058CCE9C17E1759747C6B67EC1A5A9|FF FF FF FF|"; distance:57; isdataat:!1,relative; metadata:ruleset community, service http; reference:url,www.proofpoint.com/us/threat-insight/post/danabot-new-banking-trojan-surfaces-down-under-0; classtype:trojan-activity; sid:8000100; rev:1;)

Thanks.
YM
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