Cisco Talos Blog

November 30, 2023 08:00

New SugarGh0st RAT targets Uzbekistan government and South Korea

Cisco Talos recently discovered a malicious campaign that likely started as early as August 2023, delivering a new remote access trojan (RAT) we dubbed “SugarGh0st.”

November 9, 2023 08:00

Spammers abuse Google Forms’ quiz to deliver scams

Cisco Talos has recently observed an increase in spam messages abusing a feature of quizzes created within Google Forms.

October 31, 2023 07:00

Arid Viper disguising mobile spyware as updates for non-malicious Android applications

Since April 2022, Cisco Talos has been tracking a malicious campaign operated by the espionage-motivated Arid Viper advanced persistent threat (APT) group targeting Arabic-speaking Android users.

October 25, 2023 08:01

Kazakhstan-associated YoroTrooper disguises origin of attacks as Azerbaijan

Cisco Talos assesses with high confidence that YoroTrooper, an espionage-focused threat actor first active in June 2022, likely consists of individuals from Kazakhstan based on their use of Kazakh currency and fluency in Kazakh and Russian.

October 5, 2023 07:00

Qakbot-affiliated actors distribute Ransom Knight malware despite infrastructure takedown

The threat actors behind the Qakbot malware have been conducting a campaign since early August 2023 in which they have been distributing Ransom Knight ransomware and the Remcos backdoor via phishing emails.

September 19, 2023 08:00

New ShroudedSnooper actor targets telecommunications firms in the Middle East with novel Implants

Cisco Talos has discovered a new intrusion set we're calling "ShroudedSnooper" consisting of two new implants "HTTPSnoop" and "PipeSnoop" targeting telecommunications firms in the middle-east.

September 7, 2023 08:00

Cybercriminals target graphic designers with GPU miners

Cybercriminals are abusing Advanced Installer, a legitimate Windows tool used for creating software packages, to drop cryptocurrency-mining malware including PhoenixMiner and lolMiner on infected machines.

August 31, 2023 08:00

SapphireStealer: Open-source information stealer enables credential and data theft

SapphireStealer appears to be delivered as part of a multi-stage infection process, with threat actors leveraging open-source malware downloaders like FUD-Loader to deliver SapphireStealer to potential victims.

August 24, 2023 08:04

Lazarus Group's infrastructure reuse leads to discovery of new malware

Lazarus Group appears to be changing its tactics, increasingly relying on open-source tools and frameworks in the initial access phase of their attacks, as opposed to strictly employing them in the post-compromise phase.