Türkiye Hackers Exploited Output Messenger Zero-Day to Drop Golang Backdoors on Kurdish Servers

A Türkiye-affiliated threat actor exploited a zero-day security flaw in an Indian enterprise communication platform called Output Messenger as part of a cyber espionage attack campaign since April 2024. "These exploits have resulted in a collection of related user data from targets in Iraq," the...

Marbled Dust leverages zero-day in Output Messenger for regional espionage

Since April 2024, the threat actor that Microsoft Threat Intelligence tracks as Marbled Dust has been observed exploiting user accounts that have not applied fixes to a zero-day vulnerability CVE-2025-27920 in the messaging app Output Messenger, a multiplatform chat software. These exploits have...

Marbled Dust leverages zero-day in Output Messenger for regional espionage

Since April 2024, the threat actor that Microsoft Threat Intelligence tracks as Marbled Dust has been observed exploiting user accounts that have not applied fixes to a zero-day vulnerability CVE-2025-27920 in the messaging app Output Messenger, a multiplatform chat software. These exploits have...

MirrorFace Targets Japan and Taiwan with ROAMINGMOUSE and Upgraded ANEL Malware

The nation-state threat actor known as MirrorFace has been observed deploying malware dubbed ROAMINGMOUSE as part of a cyber espionage campaign directed against government agencies and public institutions in Japan and Taiwan. The activity, detected by Trend Micro in March 2025, involved the use o...

Russian Hackers Using ClickFix Fake CAPTCHA to Deploy New LOSTKEYS Malware

The Russia-linked threat actor known as COLDRIVER has been observed distributing a new malware called LOSTKEYS as part of an espionage-focused campaign using ClickFix-like social engineering lures. "LOSTKEYS is capable of stealing files from a hard-coded list of extensions and directories, along...

Chinese Group TheWizards Exploits IPv6 to Drop WizardNet Backdoor

ESET has discovered Spellbinder, a new tool used by the China-linked cyber espionage group TheWizards to conduct AitM…...

Iranian Hackers Maintain 2-Year Access to Middle East CNI via VPN Flaws and Malware

An Iranian state-sponsored threat group has been attributed to a long-term cyber intrusion aimed at a critical national infrastructure CNI entity in the Middle East that lasted nearly two years. The activity, which lasted from at least May 2023 to February 2025, entailed "extensive espionage...

Zero-day attacks on browsers and smartphones drop, says Google

Cybercriminals are having less success targeting end-user technology with zero-day attacks, said Google's security team this week. While most attacks do still target personal technology like smartphones and browsers, the focus is moving increasingly to enterprise tech. Zero-day vulnerabilities ar...

From TV5Monde to Govt: France Blames Russia’s APT28 for Cyberattacks

France accuses Russia's APT28 hacking group Fancy Bear of targeting French government entities in a cyber espionage campaign.…...

Nebulous Mantis Targets NATO-Linked Entities with Multi-Stage Malware Attacks

Cybersecurity researchers have shed light on a Russian-speaking cyber espionage group called Nebulous Mantis that has deployed a remote access trojan known as RomCom RAT since mid-2022. RomCom "employs advanced evasion techniques, including living-off-the-land LOTL tactics and encrypted command a...

SentinelOne Uncovers Chinese Espionage Campaign Targeting Its Infrastructure and Clients

Cybersecurity company SentinelOne has revealed that a China-nexus threat cluster dubbed PurpleHaze conducted reconnaissance attempts against its infrastructure and some of its high-value customers. "We first became aware of this threat cluster during a 2024 intrusion conducted against an...

DslogdRAT Malware Deployed via Ivanti ICS Zero-Day CVE-2025-0282 in Japan Attacks

Cybersecurity researchers are warning about a new malware called DslogdRAT that's installed following the exploitation of a now-patched security flaw in Ivanti Connect Secure ICS. The malware, along with a web shell, were "installed by exploiting a zero-day vulnerability at that time,...

Iran-Linked Hackers Target Israel with MURKYTOUR Malware via Fake Job Campaign

The Iran-nexus threat actor known as UNC2428 has been observed delivering a backdoor known as MURKYTOUR as part of a job-themed social engineering campaign aimed at Israel in October 2024. Google-owned Mandiant described UNC2428 as a threat actor aligned with Iran that engages in cyber...

Lotus Panda Hacks SE Asian Governments With Browser Stealers and Sideloaded Malware

The China-linked cyber espionage group tracked as Lotus Panda has been attributed to a campaign that compromised multiple organizations in an unnamed Southeast Asian country between August 2024 and February 2025. "Targets included a government ministry, an air traffic control organization, a...

Brass Typhoon: The Chinese Hacking Group Lurking in the Shadows

Though less well-known than groups like Volt Typhoon and Salt Typhoon, Brass Typhoon, or APT 41, is an infamous, longtime espionage actor that foreshadowed recent telecom hacks...

Russia-Linked Gamaredon Uses Troop-Related Lures to Deploy Remcos RAT in Ukraine

Entities in Ukraine have been targeted as part of a phishing campaign designed to distribute a remote access trojan called Remcos RAT. "The file names use Russian words related to the movement of troops in Ukraine as a lure," Cisco Talos researcher Guilherme Venere said in a report published last...

RESURGE Malware Exploits Ivanti Flaw with Rootkit and Web Shell Features

The U.S. Cybersecurity and Infrastructure Security Agency CISA has shed light on a new malware called RESURGE that has been deployed as part of exploitation activity targeting a now-patched security flaw in Ivanti Connect Secure ICS appliances. "RESURGE contains capabilities of the SPAWNCHIMERA...

RedCurl Shifts from Espionage to Ransomware with First-Ever QWCrypt Deployment

The Russian-speaking hacking group called RedCurl has been linked to a ransomware campaign for the first time, marking a departure in the threat actor's tradecraft. The activity, observed by Romanian cybersecurity company Bitdefender, involves the deployment of a never-before-seen ransomware stra...

Zero-Day Alert: Google Releases Chrome Patch for Exploit Used in Russian Espionage Attacks

Google has released out-of-band fixes to address a high-severity security flaw in its Chrome browser for Windows that has been exploited in the wild as part of attacks targeting organizations in Russia. The vulnerability, tracked as CVE-2025-2783 , has been described as a case of "incorrect handl...

Chinese Hackers Breach Asian Telecom, Remain Undetected for Over 4 Years

A major telecommunications company located in Asia was allegedly breached by Chinese state-sponsored hackers who spent over four years inside its systems, according to a new report from incident response firm Sygnia. The cybersecurity company is tracking the activity under the name Weaver Ant ,...