Attackers target Ukraine using GoMet backdoor
Executive summary Since the Russian invasion of Ukraine began, Ukrainians have been under a nearly constant barrage of cyber attacks. Working jointly with Ukrainian organizations, Cisco Talos has discovered a fairly uncommon piece of malware targeting Ukraine — this time aimed a
Transparent Tribe begins targeting education sector in latest campaign
* Cisco Talos has been tracking a new malicious campaign operated by the Transparent Tribe APT group. * This campaign involves the targeting of educational institutions and students in the Indian subcontinent, a deviation from the adversary's typical focus on government entitie
The BlackByte ransomware group is striking users all over the globe
News summary * Cisco Talos has been monitoring the BlackByte Ransomware Group for several months, infecting victims all over the world, from North America to Colombia, Netherlands, China, Mexico and Vietnam. * The FBI released a joint cybersecurity advisory in February 2022 wa
Bitter APT adds Bangladesh to their targets
* Cisco Talos has observed an ongoing malicious campaign since August 2021 from the Bitter APT group that appears to target users in Bangladesh, a change from the attackers' usual victims. * As part of this, there's a new trojan based on Apost Talos is calling "ZxxZ," that, amo
Conti and Hive ransomware operations: What we learned from these groups' victim chats
As part of Cisco Talos’ continuous efforts to learn more about the current ransomware landscape, we recently examined a trove of chat logs between the Conti and Hive ransomware gangs and their victims. Ransomware-as-a-service groups have exploded in popularity over the past few
Threat Spotlight: "Haskers Gang" Introduces New ZingoStealer
Update (04/14/22): Following the initial publication of this blog, we observed a new post in the Haskers Gang Telegram channel announcing that ownership of the ZingoStealer project is being transferred to a new threat actor. We also observed the malware author offering to sell t
Threat Spotlight: AsyncRAT campaigns feature new version of 3LOSH crypter
By Edmund Brumaghin, with contributions from Alex Karkins. * Ongoing malware distribution campaigns are using ISO disk images to deliver AsyncRAT, LimeRAT and other commodity malware to victims. * The infections leverage process injection to evade detection by endpoint securit
Transparent Tribe campaign uses new bespoke malware to target Indian government officials
By Asheer Malhotra and Justin Thattil with contributions from Kendall McKay. * Cisco Talos has observed a new Transparent Tribe campaign targeting Indian government and military entities. While the actors are infecting victims with CrimsonRAT, their well-known malware of choi
From BlackMatter to BlackCat: Analyzing two attacks from one affiliate
* BlackCat is a recent and growing ransomware-as-a-service (RaaS) group that targeted several organizations worldwide over the past few months. * There are rumors of a relationship between BlackCat and the BlackMatter/DarkSide ransomware groups, infamous for attacking the Colon