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.
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.
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.
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.
New threat actor targets Bulgaria, China, Vietnam and other countries with customized Yashma ransomware
Cisco Talos discovered an unknown threat actor, seemingly of Vietnamese origin, conducting a ransomware operation that began at least as early as June 4, 2023 with customized Yashma ransomware.
Malicious campaigns target government, military and civilian entities in Ukraine, Poland
Cisco Talos has discovered a threat actor conducting several campaigns against government entities, military organizations and civilian users in Ukraine and Poland. We judge that these operations are very likely aimed at stealing information and gaining persistent remote access.
New Horabot campaign targets the Americas
Cisco Talos has observed a threat actor deploying a previously unidentified botnet program Talos is calling “Horabot,” which delivers a known banking trojan and spam tool onto victim machines in a campaign that has been ongoing since at least November 2020.
Newly identified RA Group compromises companies in U.S. and South Korea with leaked Babuk source code
Cisco Talos recently discovered a new ransomware actor called RA Group that has been operating since at least April 22, 2023.
Typhon Reborn V2: Updated stealer features enhanced anti-analysis and evasion capabilities
The stealer is for sale on dark web forums for $59 a month, or $540 for a lifetime subscription, which is relatively inexpensive compared to other infostealers.