Tag: apt
121 articles
Russia-Linked GREYVIBE Exploits AI in Ukraine Cyberattacks
Discover how the Russia-linked group GREYVIBE is using AI to launch sophisticated cyberattacks on Ukraine, leveraging tactics like spear-phishing emails and fake websites to spread malware. WithSecure researchers have tracked GREYVIBE's activities back to August 2025, revealing a pattern of attacks targeting Ukraine's military, government, and civilian sectors.
Chinese Hackers Exploit Middle East War to Target Energy, Maritime Firms
Chinese-aligned hackers are intensifying their attacks on maritime and energy companies in the Gulf region, exploiting the Middle East conflict to expand their espionage operations and gain a strategic advantage for Beijing. This alarming surge in cyber threats has been flagged by cybersecurity researchers at ESET.
MuddyWater Exploits DLL Side-Loading in Global Espionage Push
MuddyWater hackers have launched a massive global espionage campaign, infiltrating at least nine organizations across four continents by cleverly disguising malicious code as legitimate software. They used a sneaky trick called DLL side-loading to quietly steal credentials and browser data.
Russian Hackers Upgrade Kazuar Backdoor to Modular Botnet
Microsoft researchers have uncovered a significant upgrade to the Kazuar backdoor, transforming it into a modular peer-to-peer botnet by the notorious Russian hacker group, Secret Blizzard. This sophisticated tool has been used to target high-stakes organizations and critical systems across Europe, Asia, and Ukraine.
Turla Upgrades Kazuar Backdoor to Modular P2P Botnet
Microsoft's Threat Intelligence team has uncovered a significant upgrade to the Kazuar backdoor by the notorious Russian state-sponsored group Turla, now a modular P2P botnet designed for long-term intelligence collection. This move enables Turla to maintain a persistent grip on compromised systems.
Kimsuky APT Expands Arsenal with Advanced PebbleDash Malware Tools
Kimsuky's malware arsenal just got a major boost with the addition of advanced PebbleDash tools, allowing the group to infiltrate systems with even more sophisticated tactics. Their latest campaign uses clever spear-phishing and malicious attachments to catch victims off guard.
Mustang Panda Unveils Modular FDMTP Backdoor in Cyberespionage Push
Cyberespionage groups like Mustang Panda are constantly evolving their tactics, and a recent campaign has seen the emergence of a modular backdoor that allows attackers to adapt and persist in compromised environments. This sophisticated tool enables hackers to blend in with legitimate processes, making it a major concern for security experts.
Ghostwriter Launches Geofenced PDF Phishing Against Ukraine Government
Meet FrostyNeighbor, a Belarus-aligned threat actor that's been wreaking havoc since 2016 with sophisticated cyber espionage and influence operations targeting Ukraine and beyond. This adaptive group has earned a reputation for evolving its tactics, using diverse lures and delivery mechanisms to stay one step ahead.
KongTuke Hackers Exploit Microsoft Teams for Rapid Corporate Breaches
KongTuke hackers have found a lightning-fast way to breach corporations, exploiting Microsoft Teams to go from initial contact to persistent foothold in under five minutes. This alarming new tactic is part of KongTuke's evolving social engineering toolkit, complementing its previous web-based attacks.
Iran-Linked APT Exploits Ransomware Disguise for Espionage
MuddyWater, an Iran-linked APT group, has been caught exploiting a ransomware disguise to secretly infiltrate systems, using interactive tactics to harvest credentials and gain internal access. By masquerading as a Chaos ransomware affiliate, the group aimed to throw off detectives and cover its espionage tracks.
MuddyWater hackers exploit Chaos ransomware as cyber-espionage decoy
MuddyWater hackers have cleverly used Chaos ransomware as a decoy to mask their true intentions - and it's not about making a quick buck. Instead, their tactics suggest a more sinister goal, blurring the lines between state-sponsored espionage and cybercrime.
China-Linked UAT-8302 Exploits Shared Malware to Target Global Governments
Meet UAT-8302, a sophisticated China-linked threat group that's been secretly targeting governments worldwide, deploying custom malware to infiltrate and gather intel. Its recent attacks have hit government entities in South America and southeastern Europe, raising global cybersecurity concerns.
North Korean Hackers Infiltrate Android Games to Spy on Defectors
Security researchers at Eset stumbled upon a sneaky plot by North Korean hackers, who infiltrated popular Android games to spy on defectors by hiding a backdoor called BirdCall in the apps. The malicious code was cleverly disguised in game files available for download on a regional gaming platform's official website.
Silver Fox APT Targets Russia, India with ABCDoor Backdoor
Over 1,600 malicious emails, disguised as tax-audit notices, were sent to targets in India and Russia between January and February 2026, aiming to trick recipients into downloading a backdoor or clicking on a malicious link. The cleverly crafted phishing campaign unfolded in two waves, using PDFs and archives to spread the ABCDoor backdoor.
Novel Chinese Spy Group Infiltrates Critical Networks in Poland, Asia
A recent investigation by TrendAI has uncovered a concerning China-linked espionage campaign, with a novel spy group infiltrating over a dozen critical networks across Poland and Asia, leaving behind a lingering threat that's experts' biggest worry. The threat group, tracked as Shadow-Earth-053, has been actively compromising networks since December 2024.
China Hacker Extradited Over Silk Typhoon Cyber Attacks
In a major breakthrough, 34-year-old Chinese national Xu Zewei has been extradited to the US to face charges for his alleged role in the massive Silk Typhoon cyber attacks that hit over 12,700 US organizations. Xu appeared in a Houston federal court over the weekend, facing serious charges including wire fraud, unauthorized computer access, and identity theft.
US Charges Chinese National in Silk Typhoon Cyber Attacks
A Chinese national, Xu Zewei, has been extradited to the US from Italy to face charges for his alleged role in the notorious HAFNIUM cyber attacks, a vast intrusion campaign that compromised over 12,700 US organizations. Xu's arrival in US court marks a significant step in holding him accountable for his actions.
Firestarter Malware Evades Cisco Firewall Updates, Persists Across Reboots
A custom backdoor called Firestarter has been discovered evading Cisco firewall updates and persisting across reboots, posing a significant threat to cybersecurity. This sophisticated malware is attributed to a threat actor linked to cyberespionage campaigns, including the notorious ArcaneDoor operation.
Eset Exposes Chinese Hackers' Careless Backdoor Tactics
Chinese hackers have been caught off guard by their own carelessness, leaving behind a digital trail that exposed their previously undetected backdoor tactics. Researchers uncovered over 9,000 messages revealing the attackers' testing systems and habits, leading to the identification of a Chinese nation-state actor dubbed GopherWhisper.
Harvester Expands Linux Arsenal with GoGra Backdoor in South Asia
Harvester's Linux arsenal just got a boost with the deployment of the GoGra backdoor in South Asia, enabling the threat actor to sneak past traditional network defenses by hijacking legitimate Microsoft Graph API and Outlook mailboxes. This latest move is linked to Harvester's earlier espionage campaigns targeting key sectors in the region.
Microsoft Patch Tuesday Disrupts 169 Vulnerabilities, Including Exploited SharePoint Flaw
Microsoft's latest Patch Tuesday update is a doozy, addressing a record 169 security flaws across its product lineup - including a critical SharePoint zero-day that's already being exploited in the wild. With nearly 9 out of 10 fixes rated as Important or Critical, organizations are under pressure to patch quickly and avoid leaving themselves vulnerable.
Ransomware Gang 0APT Targets Rival Krybit with Exposure Threat
Ransomware gangs are turning on each other, and the gloves are off - 0APT has publicly threatened to expose individuals tied to rival gang Krybit, escalating their rivalry to a whole new level of personal and public. This shocking move reveals the cutthroat world of cybercrime, where even thieves don't always agree.
Iranian Campaign Targets 3,900 Devices in US Infrastructure
A recent Iranian cyber campaign has set its sights on a staggering 3,900 exposed devices in US infrastructure, putting energy, water, and government services at risk. This large-scale threat is a clear warning sign that these critical systems may be vulnerable to attack.
Bitter APT Group Exploits Middle East Spear-Phishing Campaign
The Bitter APT Group has been linked to a sophisticated year-long spear-phishing campaign that targeted the Middle East, using deceptive emails to spread its reach. This hack-for-hire effort, attributed to a South Asian connection, signals a sustained threat to the region's security.