Silver Fox APT Uses Cyrillic False Flag in Teams SEO Poisoning to Deploy ValleyRAT

Silver Fox APT Uses Cyrillic False Flag in Teams SEO Poisoning to Deploy ValleyRAT

A sophisticated cyber-espionage campaign targeting Chinese organizations uses SEO poisoning and Russian false flags to mislead investigators. The attackers employ malware like ValleyRAT to steal sensitive information and conduct financial theft. #SilverFox #ValleyRAT

Keypoints

  • The Silver Fox APT group launched a campaign targeting Chinese-speaking users since November 2025.
  • The attack relies on SEO poisoning using typo-squatted domains like teamscn[.]com to redirect victims.
  • The malicious ZIP file named МЅТчатѕSetup.zip contains a Russian-language executable to mislead attribution.
  • ValleyRAT malware is deployed to conduct espionage and financial theft against victims.
  • Indicators such as using Cyrillic characters and Russian language are deliberate false flags to confuse attribution efforts.

Read More: https://securityonline.info/silver-fox-apt-uses-cyrillic-false-flag-in-teams-seo-poisoning-to-deploy-valleyrat/