Polazert Trojan using poisoned Google Search results to spread

Trojan.Polazert aka SolarMarker has gone back and fine-tuned an old tactic known as SEO-poisoning to plant their Remote Access Trojan RAT on as many systems as possible. This RAT runs in memory and is used by attackers to install additional malware on affected systems. Trojan.Polazert...

Microsoft Zerologon Flaw Under Attack By Iranian Nation-State Actors

Microsoft is warning that an Iranian nation-state actor is now actively exploiting the Zerologon vulnerability CVE-2020-1472, adding fuel to the fire as the severe flaw continues to plague businesses. The advanced persistent threat APT actor, which Microsoft calls MERCURY also known as MuddyWater...

Microsoft Blacklists Dozens of New File Extensions in Outlook

Microsoft is banning almost 40 new types of file extensions on its Outlook email platform. The aim is to protect email users from what it deems “at-risk” file attachments, which are typically sent with malicious scripts or executables. The move will prevent users from downloading email attachment...

Ransomware 1H 2017 review: Global outbreaks reinforce the value of security hygiene

In the first six months of 2017, ransomware threats reached new levels of sophistication. The same period also saw the reversal of a six-month downward trend in ransomware encounters. New ransomware code was released at a higher rate with increasing complexity. Two high-profile ransomware inciden...

Microsoft Identifies New Malware Dropping Sefnit Botnet

Plenty has been written about the Sefnit malware family and its favor with using Tor to mask communication, as well as the money it’s made for criminals via click-fraud schemes. Sefnit, however, has had a pair of accomplices that until recently were regarded as harmless programs by most security...