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ThreatFox IOC Database

You are viewing the ThreatFox database entry for url https://yu8y1w.oss-cn-beijing.aliyuncs.com/tad.

Database Entry

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IOC ID:1960911
IOC: https://yu8y1w.oss-cn-beijing.aliyuncs.com/tad
IOC Type :url
Threat Type :payload_delivery
Malware: ValleyRAT
Malware alias:Winos
Confidence Level : Confidence level is high (90%)
Is compromised? : False
ASN:AS37963 ALIBABA-CN-NET
Country:- CN
First seen:2026-10-12 06:11:35 UTC
Last seen:never
UUID:9fbcc62b-c5a3-11f1-bd13-42010aa4000a
Reporter Daydream
Reward 5 credits from ThreatFox
Tags:SilverFox ValleyRAT
Reference: https://bazaar.abuse.ch/sample/1a20a7ec6847d1efc48a930b9c9fde601c9d0f41c0876febedcff913dd80dc7c/

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Daydream
Next-stage URL requested by inflated loader 1a20a7ec6847d1efc48a930b9c9fde601c9d0f41c0876febedcff913dd80dc7c after the user accepts its UAC prompt: GET over HTTPS with User-Agent '3M' and Cache-Control: no-cache, about 34 s after elevation; the loader first creates C:\Users\Public\<6 random chars>. Observed in an isolated lab with a fake internet; the URL was not fetched from the real host, so availability is unverified. Sibling loaders use the same pattern <6 chars>.oss-cn-beijing.aliyuncs.com/tad.