APT
MuddyWater hackers use Chaos ransomware as a decoy in attacks
The MuddyWater Iranian hackers disguised their operations as a Chaos ransomware attack, relying on Microsoft Teams social engineering to gain access and establish persistence. Although the attack involved credential theft, persistence, remote access, data exfiltration, extortion emails, and an entry on the Chaos leak portal, the attackers used infrastructure and techniques associated with the MuddyWater […]
New GopherWhisper APT group abuses Outlook, Slack, Discord for comms
A previously undocumented state-backed threat actor named GopherWhisper is using a Go-based custom toolkit and legitimate services like Microsoft 365 Outlook, Slack, and Discord in attacks against government entities. Active since at least 2023, the hackers have been linked to China and are estimated to have compromised dozens of victims. In a campaign identified by […]
China-linked hackers exploited Sitecore zero-day for initial access
An advanced threat actor tracked as UAT-8837 and believed to be linked to China has been focusing on critical infrastructure systems in North America, gaining access by exploiting both known and zero-day vulnerabilities. The hacker group has been active since at least 2025, and its purpose appears to be mainly to obtain initial access to […]
Hackers exploited Citrix, Cisco ISE flaws in zero-day attacks
An advanced threat actor exploited the critical vulnerabilities “Citrix Bleed 2″ (CVE-2025-5777) in NetScaler ADC and Gateway, and CVE-2025-20337 affecting Cisco Identity Service Engine (ISE) as zero-days to deploy custom malware. Amazon’s threat intelligence team, analyzing “MadPot” honeypot data, found that hackers leveraged the two security issues before the security issues were disclosed publicly and patches became […]
Chinese hackers breached National Guard to steal network configurations
The Chinese state-sponsored hacking group known as Salt Typhoon breached and remained undetected in a U.S. Army National Guard network for nine months in 2024, stealing network configuration files and administrator credentials that could be used to compromise other government networks. Salt Typhoon is a Chinese state-sponsored hacking group that is believed to be affiliated […]
Hackers abuse Microsoft ClickOnce and AWS services for stealthy attacks
A sophisticated malicious campaign that researchers call OneClik has been leveraging Microsoft’s ClickOnce software deployment tool and custom Golang backdoors to compromise organizations within the energy, oil, and gas sectors. The hackers rely on legitimate AWS cloud services (AWS, Cloudfront, API Gateway, Lambda) to keep the command and control (C2) infrastructure hidden. ClickOnce is a deployment […]
Microsoft and CrowdStrike partner to link hacking group names
Microsoft and CrowdStrike announced today that they’ve partnered to connect the aliases used for specific threat groups without actually using a single naming standard. As the two companies explained on Monday, this will be done by mapping (or linking) the different names their security analysts use for each group they track. Microsoft has updated its threat […]
Russian Laundry Bear cyberspies linked to Dutch Police hack
A previously unknown Russian-backed cyberespionage group tracked as Laundry Bear has been linked to a September 2024 Dutch police security breach. As the Dutch national police (Politie) revealed last year, the attackers stole work-related contact information of multiple officers, including names, email addresses, phone numbers, and, in some cases, private details. The Netherlands General Intelligence and […]
Commvault says recent breach didn’t impact customer backup data
Commvault, a leading provider of data protection solutions, says a nation-state threat actor who breached its Azure environment didn’t gain access to customer backup data. Listed on NASDAQ since March 2006, Commvault is included in the S&P MidCap 400 Index and provides cyber resilience services to over 100,000 organizations. As the company first revealed on March 7, […]
State-sponsored hackers embrace ClickFix social engineering tactic
ClickFix attacks are gaining traction among threat actors, with multiple advanced persistent threat (APT) groups from North Korea, Iran, and Russia adopting the technique in recent espionage campaigns. ClickFix is a social engineering tactic where malicious websites impersonate legitimate software or document-sharing platforms. Targets are lured via phishing or malvertising and shown fake error messages […]