NotDoor: APT28’s Sneaky Outlook Backdoor Strikes Again!
NotDoor is the latest trick from APT28, a notorious cyber threat group, using VBA-based malware to turn Outlook into a secret agent. By exploiting email triggers, it lets hackers exfiltrate data, upload files, and run commands, all while sipping coffee in their pajamas. Who knew emails could do more than just clutter our inboxes?

Hot Take:
So, it seems NotDoor isn’t just your average malware – it’s the kind of digital mischief-maker that makes James Bond villains look like amateurs. With a name that sounds more like a knock-knock joke setup, this pesky piece of code is anything but funny for cybersecurity folks. It’s a high-tech game of hide and seek, where the prize is your data and the penalty is being made a fool of by a bunch of sneaky Russians. And just when you thought your Outlook was safe, in walks APT28, the cyber equivalent of a Russian nesting doll – full of surprises and layers you didn’t ask for!
Key Points:
- NotDoor is a sophisticated VBA-based malware targeting Microsoft Outlook.
- Developed by the notorious Russian group APT28, also known as Fancy Bear.
- Uses Outlook triggers and DLL side-loading to evade detection.
- Persistence achieved by manipulating registry settings and employing stealth tactics.
- APT28 has a colorful history of high-profile cyber-attacks and espionage.