Russian Hackers Archives

AppWizard

March 23, 2026

FBI Warns of Russian Hackers Targeting Messaging Apps – The Advocate-Messenger

The FBI has issued a warning about phishing campaigns conducted by cyber actors linked to the Russian Intelligence Services (RIS), which target commercial messaging applications (CMAs). These actors have compromised numerous individual accounts, focusing on individuals with significant intelligence value, such as U.S. government officials and journalists, without breaching the encryption of the applications. The campaigns have allowed unauthorized access to private messages, contact lists, and the ability to send deceptive messages. Users of CMAs, especially Signal, are particularly targeted. The phishing tactics involve disguising messages as communications from automated CMA support, leading victims to click malicious links or provide sensitive information. To mitigate risks, users are advised to enhance their cybersecurity measures, remain vigilant, and follow best practices such as scrutinizing links, verifying group chats, and reporting suspicious activity to the Internet Crime Complaint Center or local authorities.

AppWizard

March 23, 2026

Russian hackers hijack thousands of ‘high intelligence’ messaging app accounts, FBI warns

Hackers linked to Russian intelligence are targeting high-profile users of popular messaging applications, according to a warning from the FBI and CISA. The primary targets include U.S. government officials, military personnel, political figures, and journalists. The attackers compromise accounts to access messages and contact lists, allowing for further phishing attempts. Signal users are particularly at risk, though techniques can extend to WhatsApp and Telegram. The hackers use social engineering tactics, impersonating official support accounts to trick users into revealing sensitive information. The FBI and CISA advise users to be cautious of unexpected messages and suspicious links. Victims are encouraged to report incidents to the Internet Crime Complaint Center (IC3).

AppWizard

March 22, 2026

Russian hackers hack messengers, Signal and WhatsApp under attack

Hackers with ties to Russian intelligence have intensified efforts against users of messaging platforms like Signal, infiltrating thousands of accounts, as reported by the FBI and CISA. The main targets include current and former U.S. government officials, military personnel, political figures, and journalists. The hackers used advanced techniques to bypass security, tricking users into revealing security codes through sophisticated phishing campaigns. Signal confirmed that their encryption and infrastructure remain secure despite these attacks. This rise in cyber threats is part of a broader trend involving increased activities from pro-Iranian and Russian hackers targeting the U.S. and its allies.

AppWizard

March 22, 2026

Russian Intelligence targets American messaging app users, FBI says

FBI Director Kash Patel revealed that hackers linked to Russian intelligence are targeting the messaging accounts of high-profile U.S. individuals, including current and former government officials, military personnel, political figures, and journalists. The FBI has identified these cyber actors, who have gained unauthorized access to thousands of accounts globally, allowing them to view private messages, send impersonating messages, and conduct phishing attempts. The campaign specifically targets users of commercial messaging applications like Signal, which has been blocked in Russia due to alleged legal violations. Dutch intelligence agencies reported that Russian hackers are also engaged in a global cyber campaign against WhatsApp and Signal accounts, using phishing tactics to access sensitive information. Signal acknowledged recent targeted phishing attacks leading to account takeovers. Since Russia's invasion of Ukraine, its cyber operations have increasingly focused on disruptive tactics against Western allies.

AppWizard

March 21, 2026

FBI, CISA issue PSA on Russian intelligence campaign to target messaging apps

The FBI and CISA issued a joint public service announcement about Russian hackers targeting commercial messaging applications like Signal and WhatsApp. The hackers use social engineering tactics to deceive users into giving up account access, including impersonating support personnel and prompting users to click on malicious links or provide sensitive information. Although the hackers have not yet bypassed the apps' end-to-end encryption, compromised accounts can lead to serious consequences, such as reading messages and launching further phishing attacks. The agencies recommend that users enhance their cybersecurity measures to protect against these threats. This campaign is part of a broader trend to undermine the security of messaging apps, with previous warnings about spyware and attempts to infiltrate Signal users, especially in conflict zones.

AppWizard

March 11, 2026

Russian Hackers ‘Targeting Messaging Apps,’ Dutch Spies Say

Russian hackers are targeting messaging applications used by Dutch officials, including WhatsApp and Signal, as part of a global cyber campaign. They aim to infiltrate conversations of high-ranking officials, military personnel, and civil servants. Hackers are using tactics such as impersonating the Signal Support chatbot to obtain security credentials and exploiting the "linked devices" feature to access messages. The AIVD warns that this could lead to significant privacy and security breaches. Peter Reesink, director of military intelligence, cautions against using these apps for sensitive communications, echoing a Pentagon memo advising against the use of Signal due to threats from Russian hackers.

AppWizard

November 25, 2025

CISA alert draws attention to spyware’s targeting of messaging apps

The Cybersecurity and Infrastructure Security Agency (CISA) has issued a warning about the increasing threat of spyware targeting messaging applications, particularly on Android devices like Samsung. Cybercriminals are using social engineering techniques, including sending harmless-looking image files via WhatsApp, to install malicious software. Russian hackers have been reported to compromise Signal accounts. The alert highlights a focus on high-value individuals, including government officials and civil society members in the U.S., Middle East, and Europe. CISA has a history of issuing such alerts and provides cybersecurity guidance, including a "must-patch" list for federal agencies. Users are advised to be vigilant and follow mobile security guidelines, as threat groups are also using malicious QR codes and zero-click exploits to compromise devices.

Winsage

November 4, 2025

Russian hackers abuse Hyper-V to hide malware in Linux VMs

The Russian hacker group Curly COMrades has been using Microsoft Hyper-V to bypass endpoint detection and response (EDR) solutions by creating a concealed Alpine Linux-based virtual machine for running malware. They have deployed proprietary tools, CurlyShell and CurlCat, within this virtual environment to maintain operational stealth and secure communication. Active since mid-2024, the group targets government and judicial entities in Georgia and energy companies in Moldova. In early July, they gained remote access to two machines, activated Hyper-V, and disabled its management interface to deploy a minimalistic virtual machine that hosted their malware. This tactic allowed them to evade traditional host-based EDR detections. The virtual machine was configured to use the Default Switch network adapter, making malicious traffic appear to originate from the legitimate host's IP address. CurlyShell executes commands and maintains persistence, while CurlCat facilitates covert traffic tunneling. The group also utilized PowerShell scripts for persistence and pivoting to remote systems, including injecting Kerberos tickets into LSASS and creating local accounts via Group Policy. Bitdefender advises organizations to monitor for abnormal Hyper-V activation, LSASS access, and suspicious PowerShell scripts.

Winsage

November 4, 2025

Russian Hackers Abuse Hyper-V to Hide Malware and Evade Endpoint Detection

A Russian-linked hacking group, Curly COMrades, is using Microsoft’s Hyper-V to conceal malware within compromised Windows systems. They install a small Alpine Linux virtual machine (VM) to run custom malware, evading endpoint detection and response (EDR) software since July. The group exploits Hyper-V's native features, enabling it on victim systems while disabling management clients to avoid detection. The VM, named “WSL,” hosts two C++ tools: ‘CurlyShell,’ a reverse shell, and ‘CurlCat,’ a reverse proxy, both designed to maintain persistence and obfuscate their activities. The VM occupies only 120MB of disk space and uses Hyper-V’s Default Switch for network traffic, making malicious communication appear to originate from the legitimate host. Additionally, Curly COMrades employs malicious PowerShell scripts for persistence and lateral movement, including creating local user accounts and using a modified TicketInjector for authentication across networks.

Winsage

October 23, 2025

Russian hackers replace malware with new tools, Windows updates cause login issues, campaign targets high-profile servers

Mark your calendars for this Friday's Super Cyber Friday, featuring the session titled "Hacking the Death of EDR." Russian state-sponsored hacking group Coldriver has introduced three new malware strains: NOROBOT, YESROBOT, and MAYBEROBOT, following the exposure of their previous tool, LostKeys. The new malware is designed to evade detection and extract sensitive data from high-value targets. Microsoft has acknowledged that Windows updates released since August 29th are causing login failures on systems with duplicate Security Identifiers (SIDs), leading to authentication failures. Microsoft recommends rebuilding affected systems or contacting support for a temporary fix. Kaspersky researchers have identified a likely Chinese-speaking threat actor behind the “PassiveNeuron” campaign, targeting government, financial, and industrial servers across Asia, Africa, and Latin America since 2024, using custom implants and Cobalt Strike. CISA has added high-severity vulnerabilities in Oracle E-Business Suite, Microsoft Windows SMB Client, Kentico Xperience CMS, and Apple JavaScriptCore to its Known Exploited Vulnerabilities catalog, requiring federal agencies to patch by November 10th. Researchers from France's CEA and Soitec have unveiled a new chip architecture called Fully Depleted Silicon-on-Insulator, designed to defend against laser fault injection attacks on automotive microcontrollers. During Pwn2Own Ireland 2025, researchers exploited 34 zero-days across various devices, earning a total of 2,500 in rewards, with Team DDOS chaining eight zero-days to compromise a QNAP router and NAS. Koi Security researchers discovered a new self-propagating malware named GlassWorm, which has infected approximately 36,000 developer systems by exploiting Visual Studio Code extensions, pilfering credentials, and installing remote access tools. PolarEdge is a botnet malware targeting Cisco, ASUS, QNAP, and Synology routers, first detected in February, which installs a TLS-based backdoor to fingerprint hosts and execute tasks while employing anti-analysis techniques.