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BleepingComputer
New SynkLoader malware pushed in Microsoft Teams phishing campaign
The SynkLoader malware is being deployed in Microsoft Teams phishing campaigns by impersonating IT departments, aiming to steal user credentials. The malware features modules like a fake lock screen and remote access tools, showing a sophisticated approach to targeted attacks. Security experts advise vigilance when encountering suspicious prompts, especially regarding unsolicited installations from trusted platforms like Microsoft Azure.
Act nowConfidence: HighImmediate horizonCybersecurity risk: High
Published 21 Aug 2026, 18:50 UTC3 min read
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Summary
TL;DR
- SynkLoader malware spreads through Microsoft Teams phishing campaigns.
- Attacks involve users downloading a fake 'PowerShell Cleaner' executable.
- Malware uses a convincing fake lock screen to steal Windows account passwords.
- SynkLoader modules can include features for remote access and system profiling.
- Research suggests the malware could be linked to ransomware operations.
Interesting facts
- SynkLoader combines multiple programming languages into a single module.
- The malware's design allows it to adapt to the breached environment's profile.
- A separate PhishLocker module is specifically aimed at credential theft.