Notes of cyber inspector: three clusters of threat in cyberspace

Hacktivism and geopolitically motivated APT groups have become a significant threat to many regions of the world in recent years, damaging infrastructure and important functions of government, business, and society. In late 2022 we predicted that the involvement of hacktivist groups in all major...

Russian APT28 Deploys “NotDoor” Backdoor Through Microsoft Outlook

APT28 hackers deploy NotDoor backdoor via Microsoft Outlook macros, using OneDrive sideloading to steal data and evade detection...

Dexter: Resurrection Finale Leaks Online in Russian Dub

Dexter: Resurrection finale leaks in Russian dub ahead of release. Episodes 9 and 10 surface online, echoing past…...

ShadowSilk Hits 35 Organizations in Central Asia and APAC Using Telegram Bots

A threat activity cluster known as ShadowSilk has been attributed to a fresh set of attacks targeting government entities within Central Asia and Asia-Pacific APAC. According to Group-IB, nearly three dozen victims have been identified, with the intrusions mainly geared towards data exfiltration...

The Mysterious Shortwave Radio Station Stoking US-Russia Nuclear Fears

A popular shortwave Russian radio station dubbed “UVB-76” has been an enigma for decades. But its recent messages have turned it into a tool for Kremlin saber-rattling...

Russian State Hackers Exploit 7-Year-Old Cisco Router Vulnerability

FBI and Cisco warn Russian hackers are exploiting a 7-year-old Cisco Smart Install vulnerability on outdated routers and…...

Fake Antivirus App Spreads Android Malware to Spy on Russian Users

Doctor Web warns of Android.Backdoor.916.origin, a fake antivirus app that spies on Russian users by stealing data, streaming…...

Russian state-sponsored espionage group Static Tundra compromises unpatched end-of-life network devices

Static Tundra is a Russian state-sponsored cyber espionage group linked to the FSB's Center 16 unit that has been operating for over a decade, specializing in compromising network devices for long-term intelligence gathering operations. The group actively exploits a seven-year-old vulnerability...

Zero-Day Exploit in WinRAR File

A zero-day vulnerability in WinRAR is being exploited by at least two Russian criminal groups: The vulnerability seemed to have super Windows powers. It abused alternate data streams, a Windows feature that allows different ways of representing the same file path. The exploit abused that feature ...

Norway Blames Pro-Russian Hackers for Dam Cyberattack

Norway says pro-Russian hackers breached a dam in Bremanger in April, opening a water valve for 4 hours…...

Russians hacked US courts, say investigators

Russia is after secret files in the US court system, according to reports this week—and its hackers appear to have reached at least some of them. Last week, news broke of a successful cyberattack against the decades-old US court filing system. Called Case Management/Electronic Case Files CM/ECF,...

WinRAR vulnerability exploited by two different groups

On July 30, 2025, WinRAR released a new version 7.13 Final to patch a vulnerability which was used in two separate malware campaigns. WinRAR is a popular file archiving and data compression tool that allows users to compress files into smaller archives, like RAR and ZIP, and can also unpack vario...

Russian-Linked Curly COMrades Deploy MucorAgent Malware in Europe

A new report from Bitdefender reveals the Russian-linked hacking group Curly COMrades is targeting Eastern Europe with a…...

⚡ Weekly Recap: VPN 0-Day, Encryption Backdoor, AI Malware, macOS Flaw, ATM Hack & More

Malware isn't just trying to hide anymore—it's trying to belong. We're seeing code that talks like us, logs like us, even documents itself like a helpful teammate. Some threats now look more like developer tools than exploits. Others borrow trust from open-source platforms, or quietly build...

Frozen in transit: Secret Blizzard’s AiTM campaign against diplomats

Microsoft Threat Intelligence has uncovered a cyberespionage campaign by the Russian state actor we track as Secret Blizzard that has been targeting embassies located in Moscow using an adversary-in-the-middle AiTM position to deploy their custom ApolloShadow malware. ApolloShadow has the...

The Kremlin’s Most Devious Hacking Group Is Using Russian ISPs to Plant Spyware

The FSB cyberespionage group known as Turla seems to have used its control of Russia’s network infrastructure to meddle with web traffic and trick diplomats into infecting their computers...

Cyber Espionage Campaign Hits Russian Aerospace Sector Using EAGLET Backdoor

Russian aerospace and defense industries have become the target of a cyber espionage campaign that delivers a backdoor called EAGLET to facilitate data exfiltration. The activity, dubbed Operation CargoTalon , has been assigned to a threat cluster tracked as UNG0901 short for Unknown Group 901...

Suspected Admin of XSS.IS Cybercrime Forum Arrested in Ukraine

Suspected admin of XSS.IS, a major Russian-language cybercrime forum, arrested in Ukraine after years of running malware and data trade operations...

Police Shut Down 100 Servers Tied to Russian NoName057(16), Arrest 2

In an operation called Eastwood, authorities arrested two people and shut down more than 100 servers linked to the Russian group NoName05716...

Europol Disrupts NoName057(16) Hacktivist Group Linked to DDoS Attacks Against Ukraine

An international operation coordinated by Europol has disrupted the infrastructure of a pro-Russian hacktivist group known as NoName05716 that has been linked to a string of distributed denial-of-service DDoS attacks against Ukraine and its allies. The actions have led to the dismantling of a maj...