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Analysis of a new macOS Trojan-Proxy
Analysis of a new macOS Trojan-Proxy
A new macOS Trojan-Proxy is riding on cracked versions of legitimate software; it relies on DNS-over-HTTPS to obtain a C&C (command and control) address. Illegally distributed software historically has served as a way to sneak malware onto victims’ devices. Oftentimes, users are not willing to pay for software tools they need, so they go searching the Web for a “free lunch”. They are an excellent target for cybercriminals who realize that an individual looking for a cracked app will be willing to download an installer from a questionable website and disable security on their machine, and so they will be fairly easy to trick into installing malware as well.
·securelist.com·
Analysis of a new macOS Trojan-Proxy
StripedFly: Perennially flying under the radar
StripedFly: Perennially flying under the radar
Nobody would even suspect the mining malware was merely a mask, masquerading behind an intricate modular framework that supports both Linux and Windows. The amount of effort that went into creating the framework is truly remarkable, and its disclosure was quite astonishing.
·securelist.com·
StripedFly: Perennially flying under the radar
Nokoyawa ransomware attacks with Windows zero-day
Nokoyawa ransomware attacks with Windows zero-day
in February 2023, Kaspersky technologies detected a number of attempts to execute similar elevation-of-privilege exploits on Microsoft Windows servers belonging to small and medium-sized businesses in the Middle East, in North America, and previously in Asia regions. These exploits were very similar to already known Common Log File System (CLFS) driver exploits that we analyzed previously, but we decided to double check and it was worth it – one of the exploits turned out to be a zero-day, supporting different versions and builds of Windows, including Windows 11. The exploit was highly obfuscated with more than 80% of the its code being “junk” elegantly compiled into the binary, but we quickly fully reverse-engineered it and reported our findings to Microsoft. Microsoft assigned CVE-2023-28252 to the Common Log File System elevation-of-privilege vulnerability, and a patch was released on April 11, 2023, as part of April Patch Tuesday.
·securelist.com·
Nokoyawa ransomware attacks with Windows zero-day
DNS changer in malicious mobile app used by Roaming Mantis
DNS changer in malicious mobile app used by Roaming Mantis
Roaming Mantis (a.k.a Shaoye) is a long-term cyberattack campaign that uses malicious Android package (APK) files to control infected Android devices and steal data. In 2022, we observed a DNS changer function implemented in its Android malware Wroba.o.
·securelist.com·
DNS changer in malicious mobile app used by Roaming Mantis
Nokoyawa ransomware attacks with Windows zero-day
Nokoyawa ransomware attacks with Windows zero-day
n February 2023, Kaspersky technologies detected a number of attempts to execute similar elevation-of-privilege exploits on Microsoft Windows servers belonging to small and medium-sized businesses in the Middle East, in North America, and previously in Asia regions. These exploits were very similar to already known Common Log File System (CLFS) driver exploits that we analyzed previously, but we decided to double check and it was worth it – one of the exploits turned out to be a zero-day, supporting different versions and builds of Windows, including Windows 11. The exploit was highly obfuscated with more than 80% of the its code being “junk” elegantly compiled into the binary, but we quickly fully reverse-engineered it and reported our findings to Microsoft. Microsoft assigned CVE-2023-28252 to the Common Log File System elevation-of-privilege vulnerability, and a patch was released on April 11, 2023, as part of April Patch Tuesday.
·securelist.com·
Nokoyawa ransomware attacks with Windows zero-day
DNS changer in malicious mobile app used by Roaming Mantis
DNS changer in malicious mobile app used by Roaming Mantis
Roaming Mantis (a.k.a Shaoye) is a long-term cyberattack campaign that uses malicious Android package (APK) files to control infected Android devices and steal data. In 2022, we observed a DNS changer function implemented in its Android malware Wroba.o.
·securelist.com·
DNS changer in malicious mobile app used by Roaming Mantis