TF-1933845
high
📛 Threat Title
Unknown Loader: Domain name that delivers a malware payload tsfdn.org
Description
Indicator that identifies a malware distribution server (payload delivery). IOC type: Domain name that delivers a malware payload. Attributed malware: Unknown Loader. Confidence: 75. First seen: 2026-09-25 16:07:31 UTC. Reporter: varysz. Tags: etherhiding, victim.
Indicators of Compromise (1)
Each indicator is enriched from the IOC database, threat-intel feed corroboration (Threat Hunt) and VirusTotal. Click one to expand.
domain
tsfdn.org
VT: VT base fetch failed: HTTPError: 401 Client Error: Unauthorized for url: https://www.virustotal.com/api/v3/domains/tsfdn.org
UrlVoid 3 / 36
IOC database
- Type
- domain
- Value
tsfdn.org- First seen
- Last seen
- Attached to this threat
- Appears in
- 1 threat
- Description
- Ingested from IOC source: https://threatfox.abuse.ch/downloads/hostfile/
Threat Hunt — feed corroboration
Not present in any configured threat-intel feed.
Details From VirusTotal
VirusTotal: VT base fetch failed: HTTPError: 401 Client Error: Unauthorized for url: https://www.virustotal.com/api/v3/domains/tsfdn.org
References (2)
- Malpedia profile ThreatFox IOCs
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ThreatFox IOC page
ThreatFox IOCs
Indicator that identifies a malware distribution server (payload delivery). IOC type: Domain name that delivers a malware payload. Attributed malware: Unknown Loader. Confidence: 75. First seen: 2026-09-25 16:07:31 UTC. Reporter: varysz. Tags: etherhiding, victim.
Remediations (10)
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web:aviatrix.ai
Cybersecurity researchers uncover ClickFix campaigns deploying new malware loaders through fake software updates, targeting education and financial sectors.
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web:blog.sicuranext.com
A real-world ClickFix intrusion observed from both sandbox and endpoint telemetry, revealing the complete attack path from a compromised WordPress site to a blocked GULoader execution, including a full process creation call stack from the Windows Run dialog to the kernel.
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web:darkwebinformer.com
A new domain -based indicator has been identified associated with ** payload delivery** activity tied to the malware ** unknown\_loader **. This domain , advertised under the guise of a mobile advertising and monetization platform, poses a high-confidence threat to users and organizations. ---
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web:darkwebinformer.com
A new domain -based indicator has been identified associated with payload delivery activity tied to the malware unknown_loader . This domain , advertised under the guise of a mobile advertising and monetization platform, poses a high-confidence threat to users and organizations.
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web:ismalicious.com
4,553 indicators of compromise attributed to the Unknown Loader malware family — domains , IPs, URLs and file hashes, from abuse.ch feeds.
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web:threatfox.abuse.ch
A malware sample can be associated with only one malware family. The page below gives you an overview on indicators of compromise associated with unknown_loader .
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web:urlhaus.abuse.ch
URLhaus URLhaus is a platform from abuse.ch and Spamhaus dedicated to sharing malicious URLs that are being used for malware distribution. Report URLs and explore the database for valuable intelligence. Use the APIs, to seamlessly push and pull signals, and automate bulk queries. With this intelligence, gain insights into malware behavior, to help identify, track, and mitigate against malware ...
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web:urlhaus.abuse.ch
Here you can propose new malware urls or just browse the URLhaus database. If you are looking for a parsable list of the dataset, you might want to check out the URLhaus API.
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web:www.malwarebytes.com
A domain used in software examples—third-party[.]com—now serves up a fake verification page that tells Windows users to run a PowerShell command.
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web:www.malwarebytes.com
We found PavinLoader being used across ClickFix, fake software, and RenPy campaigns to deliver Amatera Stealer and other malware .
AI Forensic Analysis
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