Jul 20, 2023THNCyber Attack / Malware The defense sector in Ukraine and Eastern Europe has been targeted by a novel .NET-based backdoor called DeliveryCheck (aka CAPIBAR or GAMEDAY) that's capable of delivering next-stage payloads. The Microsoft threat intelligence team, in collaboration with the Computer Emergency Response Team of Ukraine (CERT-UA), attributed the attacks to … [Read more...] about Turla’s New DeliveryCheck Backdoor Breaches Ukrainian Defense Sector
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Chinese Hacker Group ‘Flea’ Targets American Ministries with Graphican Backdoor
Jun 21, 2023Ravie LakshmananCyber Threat / APT Foreign affairs ministries in the Americas have been targeted by a Chinese state-sponsored actor named Flea as part of a recent campaign that spanned from late 2022 to early 2023. The cyber attacks, per Broadcom's Symantec, involved a new backdoor codenamed Graphican. Some of the other targets included a government finance … [Read more...] about Chinese Hacker Group ‘Flea’ Targets American Ministries with Graphican Backdoor
ChamelDoH: New Linux Backdoor Utilizing DNS-over-HTTPS Tunneling for Covert CnC
Jun 16, 2023Ravie LakshmananEndpoint Security / Network Security The threat actor known as ChamelGang has been observed using a previously undocumented implant to backdoor Linux systems, marking a new expansion of the threat actor's capabilities. The malware, dubbed ChamelDoH by Stairwell, is a C++-based tool for communicating via DNS-over-HTTPS (DoH) tunneling. ChamelGang … [Read more...] about ChamelDoH: New Linux Backdoor Utilizing DNS-over-HTTPS Tunneling for Covert CnC
New SPECTRALVIPER Backdoor Targeting Vietnamese Public Companies
Jun 10, 2023Ravie LakshmananCyber Attack / Malware Vietnamese public companies have been targeted as part of an ongoing campaign that deploys a novel backdoor called SPECTRALVIPER. "SPECTRALVIPER is a heavily obfuscated, previously undisclosed, x64 backdoor that brings PE loading and injection, file upload and download, file and directory manipulation, and token impersonation … [Read more...] about New SPECTRALVIPER Backdoor Targeting Vietnamese Public Companies
Researchers Uncover Powerful Backdoor and Custom Implant in Year-Long Cyber Campaign
May 15, 2023Ravie LakshmananCyber Threat / Malware Government, aviation, education, and telecom sectors located in South and Southeast Asia have come under the radar of a new hacking group as part of a highly-targeted campaign that commenced in mid-2022 and continued into the first quarter of 2023. Symantec, by Broadcom Software, is tracking the activity under its … [Read more...] about Researchers Uncover Powerful Backdoor and Custom Implant in Year-Long Cyber Campaign
Researchers Warn of ReverseRAT Backdoor Targeting Indian Government Agencies
Feb 21, 2023Ravie LakshmananCyber Threat / Cyber Attack A spear-phishing campaign targeting Indian government entities aims to deploy an updated version of a backdoor called ReverseRAT. Cybersecurity firm ThreatMon attributed the activity to a threat actor tracked as SideCopy. SideCopy is a threat group of Pakistani origin that shares overlaps with another actor called … [Read more...] about Researchers Warn of ReverseRAT Backdoor Targeting Indian Government Agencies
North Korea Hackers Using New “Dolphin” Backdoor to Spy on South Korean Targets
The North Korea-linked ScarCruft group has been attributed to a previously undocumented backdoor called Dolphin that the threat actor has used against targets located in its southern counterpart. "The backdoor [...] has a wide range of spying capabilities, including monitoring drives and portable devices and exfiltrating files of interest, keylogging and taking screenshots, and … [Read more...] about North Korea Hackers Using New “Dolphin” Backdoor to Spy on South Korean Targets
Prynt Stealer Contains a Backdoor to Steal Victims’ Data Stolen by Other Cybercriminals
Researchers discovered a private Telegram channel-based backdoor in the information stealing malware, dubbed Prynt Stealer, which its developer added with the intention of secretly stealing a copy of victims' exfiltrated data when used by other cybercriminals. "While this untrustworthy behavior is nothing new in the world of cybercrime, the victims' data end up in the hands of … [Read more...] about Prynt Stealer Contains a Backdoor to Steal Victims’ Data Stolen by Other Cybercriminals
Researchers Find Counterfeit Phones with Backdoor to Hack WhatsApp Accounts
Budget Android device models that are counterfeit versions associated with popular smartphone brands are harboring multiple trojans designed to target WhatsApp and WhatsApp Business messaging apps. The trojans, which Doctor Web first came across in July 2022, were discovered in the system partition of at least four different smartphones: P48pro, radmi note 8, Note30u, and … [Read more...] about Researchers Find Counterfeit Phones with Backdoor to Hack WhatsApp Accounts
Hackers Exploiting Follina Bug to Deploy Rozena Backdoor
A newly observed phishing campaign is leveraging the recently disclosed Follina security vulnerability to distribute a previously undocumented backdoor on Windows systems. "Rozena is a backdoor malware that is capable of injecting a remote shell connection back to the attacker's machine," Fortinet FortiGuard Labs researcher Cara Lin said in a report this week. Tracked as … [Read more...] about Hackers Exploiting Follina Bug to Deploy Rozena Backdoor