Cisco Talos Intelligence Blog

August 2, 2022 08:08

Manjusaka: A Chinese sibling of Sliver and Cobalt Strike

* Cisco Talos recently discovered a new attack framework called "Manjusaka" being used in the wild that has the potential to become prevalent across the threat landscape. This framework is advertised as an imitation of the Cobalt Strike framework. * The implants for the new mal

July 21, 2022 08:07

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

July 13, 2022 19:07

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

May 18, 2022 02:05

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

May 11, 2022 08:05

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

May 3, 2022 08:05

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

April 14, 2022 07:04

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

April 5, 2022 08:04

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

March 29, 2022 08:03

Transparent Tribe campaign uses new bespoke malware to target Indian government officials

* 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 choice, they are also using new stagers and implants. * This campaign, which has be