TF-2013317
high
📛 Threat Title
ValleyRAT: MD5 hash of a malware sample (payload) b1af4350695e0e1ecd7c361604988cf7
Description
Indicator that identifies a malware sample (payload). IOC type: MD5 hash of a malware sample (payload). Attributed malware: ValleyRAT (aliases: Winos). Confidence: 95. First seen: 2026-11-03 16:42:41 UTC. Reporter: Grim.
Indicators of Compromise (1)
Each indicator is enriched from the IOC database, threat-intel feed corroboration (Threat Hunt) and VirusTotal. Click one to expand.
hash_md5
b1af4350695e0e1ecd7c361604988cf7
IOC database
- Type
- hash_md5
- Value
b1af4350695e0e1ecd7c361604988cf7- First seen
- Last seen
- Attached to this threat
- Appears in
- 2 threats
- Description
- MD5 hash of a malware sample (payload) attributed to ValleyRAT
Threat Hunt — feed corroboration
Not present in any configured threat-intel feed.
Details From VirusTotal
No VirusTotal details cached for this IOC. Open the IOC page to query VirusTotal.
References (2)
- Malpedia profile Threatfox IOCs/Threats
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ThreatFox IOC page
Threatfox IOCs/Threats
Indicator that identifies a malware sample (payload). IOC type: MD5 hash of a malware sample (payload). Attributed malware: ValleyRAT (aliases: Winos). Confidence: 95. First seen: 2026-11-03 16:42:41 UTC. Reporter: Grim.
Remediations (10)
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web:bazaar.abuse.ch
A malware sample can be associated with only one malware family. The page below gives you an overview on malware samples that MalwareBazaar has identified as ValleyRAT .
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web:bazaar.abuse.ch
MalwareBazaar Database This page shows some basic information the YARA rule ValleyRAT including corresponding malware samples . Database Entry ... Malware Samples The table below shows all malware samples that matching this particular YARA rule (max 1000).
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web:github.com
This report documents the complete multi-stage unpacking and C2 extraction of a ValleyRAT sample — a Chinese-origin remote access trojan associated with the Silver Fox APT group. The analysis required reversing 5 layers of encryption and encoding to reach the final implant and extract its C2 ...
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web:imalware.com
It compares a file's fingerprint (its MD5 , SHA-1 or SHA-256 hash ) with a list of fingerprints of known malware . If the hash matches, the file is identical to a known malicious sample .
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web:inventivehq.com
Check any file hash in seconds. Paste an MD5 , SHA-1 or SHA-256 hash , or drop a file to hash it locally, then check it against live malware feeds.
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web:ismalicious.com
ValleyRAT sample 01e41e903bb0d034bde0a15020d0ab626bda9b57eeb4d1ffbc8506c852a3b2a9: listed by 1 threat source ( malware ). File type, signatures, hashes, reports.
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web:ismalicious.com
ValleyRAT sample 694b9a50b69f7748f6d35da7e89eb0c4363ac691b8eebdad43ba8b5b6ecb9044: listed by 2 threat sources ( malware ). File type, signatures, hashes, reports.
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web:www.picussecurity.com
ValleyRAT is a multi-stage Windows remote-access trojan (RAT) first observed in early 2023 and now linked to focused campaigns targeting Chinese-language users and organizations. Operators deliver staged components (downloader → loader → injector → RAT) via phishing or trojanized installers, and rely on in-memory decryption and living-off-the-land execution (notably MSBuild.exe) to ...
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web:www.team-cymru.com
Check MD5 , SHA-1, or SHA-256 hashes against 30+ antivirus databases. Team Cymru's Malware Hash Registry speeds triage via HTTPS, DNS, or WHOIS.
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web:www.zscaler.com
Zscaler ThreatLabz recently identified a new campaign delivering the latest version of ValleyRAT , which involves multiple stages. In this blog, we will provide a technical analysis of a campaign utilized to deliver ValleyRAT , diving into details and updates observed in the ValleyRAT sample .
AI Forensic Analysis
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