Russian Hackers’ October Surprise: Firefox & Tor Exploit Fizzles Fast
In October, Russian hackers briefly wielded a zero-day vulnerability in Firefox and Tor, allowing them to execute arbitrary code just by visiting infected sites. With RomCom’s backdoor spreading like virtual wildfire, quick patches saved the day. No need to click—just a friendly reminder to update your browser, folks.

Hot Take:
When Russian hackers get bored, they play with zero-days like they’re Pokémon cards — gotta catch ’em all! Thankfully, this time, their hacking spree was more of a flash sale than a long-term investment.
Key Points:
- Russian APT group, RomCom, exploited two zero-day vulnerabilities affecting Firefox, Tor, and Windows Task Scheduler.
- The vulnerabilities allowed arbitrary code execution and privilege escalation, spreading the RomCom backdoor.
- RomCom targeted North America and Europe, avoiding Tor users and focusing on corporate victims.
- Both vulnerabilities were swiftly patched, minimizing potential damage.
- Malicious sites mimicked legitimate IT and journalism platforms, showcasing RomCom’s blend of cybercrime and espionage.
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