The AgreeTo add-in for Outlook has been hijacked and turned into a phishing kit that stole more than 4,000 Microsoft account credentials.

Originally a legitimate meeting scheduling tool for Outlook users, the module was developed by an independent publisher and has been on the Microsoft Office Add-in Store since December 2022.

Office add-ins are just URLs pointing to content loaded into Microsoft products from the developer’s server. In the case of AgreeTo, the developer used a Vercel-hosted URL (outlook-one.vercel.app) but abandoned the project, despite the userbase it formed.

Researchers uncover Reynolds ransomware embedding a vulnerable BYOVD driver to kill EDR defenses, signaling advanced evasion in ransomware attacks.

The fact that the attackers are pursuing the former method is an indication that it likely allows the malicious activity to blend in with typical administrative workflows, helping them avoid detection.

“By abusing legitimate features (password resets and drive mounting) instead of relying solely on a single ‘noisy’ exploit primitive, operators may reduce the effectiveness of detections tuned specifically for known RCE patterns,” Feminella added. “This pace of weaponization is consistent with ransomware operators rapidly analyzing vendor fixes and developing working tradecraft shortly after release.”

When reached for comment about the Warlock ransomware activity targeting SmarterTools, ReliaQuest told The Hacker News that it observed the attackers exploiting CVE-2026–23760 on unpatched systems running versions prior to Build 9,511 shortly after the patch was released.

A fake 7-Zip website is distributing a trojanized installer of the popular archiving tool that turns the user’s computer into a residential proxy node.

Residential proxy networks use home user devices to route traffic with the goal of evading blocks and performing various malicious activities such as credential stuffing, phishing, and malware distribution.

The new campaign became better known after a user reported that they downloaded a malicious installer from a website impersonating the 7-Zip project while following instructions in a YouTube tutorial on building a PC system. BleepingComputer can confirm that the malicious website, 7zip[.]com, is still live.

Bloody Wolf spear-phishing campaign deploys NetSupport RAT across Uzbekistan and Russia, hitting 60+ victims and multiple sectors.

Worm-driven TeamPCP campaign exploits Docker, Kubernetes, Redis, Ray, and React2Shell to build proxy infrastructure for data theft and ransomware.