APT28 Targeted European Entities Using Webhook-Based Macro Malware

The Russia-linked state-sponsored threat actor tracked as APT28 has been attributed to a new campaign targeting specific entities in Western and Central Europe. The activity, per S2 Grupo's LAB52 threat intelligence team, was active between September 2025 and January 2026. It has been codenamed...

Nation State Hackers Exploiting Zero-Day in Roundcube Webmail Software

The threat actor known as Winter Vivern has been observed exploiting a zero-day flaw in Roundcube webmail software on October 11, 2023, to harvest email messages from victims' accounts. "Winter Vivern has stepped up its operations by using a zero-day vulnerability in Roundcube," ESET security...

APT Winter Vivern Exploits New Roundcube 0-Day to Target European Entities

By Waqas ESET Research Uncovers New Targeted Campaign Impacting European Governments and Think Tanks. This is a post from HackRead.com Read the original post: APT Winter Vivern Exploits New Roundcube 0-Day to Target European Entities...

Stealthy DBatLoader Malware Loader Spreading Remcos RAT and Formbook in Europe

A new phishing campaign has set its sights on European entities to distribute Remcos RAT and Formbook via a malware loader dubbed DBatLoader. "The malware payload is distributed through WordPress websites that have authorized SSL certificates, which is a common tactic used by threat actors to eva...

Chinese Hackers Targeting European Entities with New MQsTTang Backdoor

The China-aligned Mustang Panda actor has been observed using a hitherto unseen custom backdoor called MQsTTang as part of an ongoing social engineering campaign that commenced in January 2023. "Unlike most of the group's malware, MQsTTang doesn't seem to be based on existing families or publicly...

Chinese Hackers Targeting European Entities with New MQsTTang Backdoor

The China-aligned Mustang Panda actor has been observed using a hitherto unseen custom backdoor called MQsTTang as part of an ongoing social engineering campaign that commenced in January 2023. "Unlike most of the group's malware, MQsTTang doesn't seem to be based on existing families or publicly...

Chinese Hackers Using Russo-Ukrainian War Decoys to Target APAC and European Entities

The China-linked nation-state hacking group referred to as Mustang Panda is using lures related to the ongoing Russo-Ukrainian War to attack entities in Europe and the Asia Pacific. That's according to the BlackBerry Research and Intelligence Team, which analyzed a RAR archive file titled...

Hackers Exploited 0-Day Vulnerability in Zimbra Email Platform to Spy on Users

A threat actor, likely Chinese in origin, is actively attempting to exploit a zero-day vulnerability in the Zimbra open-source email platform as part of spear-phishing campaigns that commenced in December 2021. The espionage operation — codenamed "EmailThief" — was detailed by cybersecurity compa...