TA458: Russian Military Intelligence Operation Targeting Webmail
TA458 is a threat actor tracked by Proofpoint, likely a Russian military intelligence operation. It conducts Operation RoundPress using half-click XSS exploits…
Tag: Proofpoint
Fake Notepad++ Plugin Delivers MATCHBOIL.V2 in UAC-0099 Attacks
The Computer Emergency Response Team of Ukraine (CERT-UA) has warned of a new campaign involving a malicious program disguised as a Notepad++…
Russian Espionage Group Exploited Zimbra Zero-Day to Steal Mail and 2FA Codes
A Russian state-sponsored espionage group exploited a zero-day vulnerability in Zimbra's webmail client to steal emails, passwords, and two-factor authentication recovery codes…
ACR Stealer Uses ClickFix Lures to Steal Browser Tokens and Microsoft 365 Files
ACR Stealer, an infostealer active since 2024, is targeting enterprise networks by stealing saved browser passwords, live session tokens, PDFs, Microsoft 365…
OAuth Client ID Spoofing Exploits Blind Spot in Microsoft Entra ID to Validate Stolen Credentials
Proofpoint has uncovered a novel evasion technique called OAuth client ID spoofing, exploited by at least two threat actors to validate stolen…
DEBULL Tooling Abuses Microsoft Device-Code Flow to Target M365 Accounts
A sophisticated device code phishing campaign targeting Microsoft 365 accounts has been observed between late June and early July 2026, leveraging collaboration-themed…
Suspected China-Aligned Hackers Exploit Roundcube Flaws Against Universities
A suspected China-aligned threat activity cluster tracked as UNK_MassTraction by Proofpoint has been exploiting critical Roundcube webmail vulnerabilities to target physics and…
Researcher Analyzes 3,000 Live ClickFix Payloads, Exposing API-Driven Malware Delivery
Security researcher Bert-Jan Pals analyzed roughly 3,000 live ClickFix payloads and presented findings at OrangeCon in early June, publishing details on June…
FIFA 2026 Cyber Risk: Pre-Tournament Threat Infrastructure Exposed
Check Point Research has revealed that threat actors pre-built and staged fraud infrastructure targeting the FIFA World Cup 2026 months before the…
North Korean Hackers Weaponize VS Code and Developer Tools in Supply Chain Attacks
Cybersecurity researchers have uncovered two malicious campaigns linked to North Korean threat actors, exploiting developer tools like Microsoft Visual Studio Code (VS…