Rule History

SID: 2031426 • Source: et/open

Versions (3)

Version DetailsCurrent

Rev: 2 • Dec 17, 2020, 12:00 PM

Message:

ET MALWARE Observed SystemBC CnC Domain in DNS Query

Rule:

alert dns $HOME_NET any -> any any (msg:"ET MALWARE Observed SystemBC CnC Domain in DNS Query"; dns.query; content:"decatos30.xyz"; nocase; depth:13; endswith; reference:url,news.sophos.com/en-us/2020/12/16/systembc; classtype:trojan-activity; sid:2031426; rev:2; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2020_12_17, deployment Perimeter, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2020_12_17;)

Created:

Dec 17, 2020, 12:00 PM

Updated:

Dec 17, 2020, 12:00 PM

DB Created:

Sep 21, 2024, 3:00 AM

DB Updated:

Sep 15, 2025, 9:36 PM

Filename:

rules/emerging-malware.rules