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ThreatFox IOC Database

You are viewing the ThreatFox database entry for ip:port 137.220.140.4:15443.

Database Entry


IOC ID:1839163
IOC: 137.220.140.4:15443
IOC Type :ip:port
Threat Type :botnet_cc
Malware: ValleyRAT
Malware alias:Winos
Confidence Level : Confidence level is elevated (75%)
Is compromised? : False
ASN:AS152194 CTGSERVERLIMITED-AS-AP
Country:- HK
First seen:2026-06-29 08:11:16 UTC
Last seen:never
UUID:1a506536-7392-11f1-97fa-42010aa4000a
Reporter abuse_ch
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Tags:valleyrat_s2
Reference: https://bazaar.abuse.ch/sample/54ad3d4d8342ddea5cc6adea83d26a574a11d7e5133a04af6999a87adbbc2336/

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abuse_ch
valleyrat_s2 (aka Winos) botnet C2

Malware Samples


The table below documents recent malware samples observed that are associated with this indicator of compromise (IOC).

Time stamp (UTC)SHA256 hashBazaar
2026-07-02 23:40:11 f4b3589cd1ac577b0f6b95ed365eac6e68aeea1d5abce55f6076d62ab10bcb31