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14 September 2022 - 22:27
Malware used runonly applescripts to avoid
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Malware used runonly applescripts to avoid






malware used runonly applescripts to avoid
  1. #Malware used runonly applescripts to avoid mac os
  2. #Malware used runonly applescripts to avoid serial number
  3. #Malware used runonly applescripts to avoid install
  4. #Malware used runonly applescripts to avoid full
  5. #Malware used runonly applescripts to avoid software

In July 2020, the security firm ESET reported a group of spoofed cryptocurrency trading apps was targeting devices running macOS to install malware called Gmera (see: Malicious Cryptocurrency Trading Apps Target MacOS Users). The malware used an updated backdoor and multistage payloads as well as anti-detection techniques to help bypass security tools (see: Fresh MacOS Backdoor Variant Linked to Vietnamese Hackers). In December, researchers at Trend Micro uncovered a macOS backdoor variant linked to an advanced persistent threat group operating from Vietnam. Other security researchers have reported attacks targeting macOS devices to plant cryptominers or other types of malware.Įarlier this month, researchers at Intezer Labs uncovered a campaign using a remote access Trojan dubbed ElectroRAT that had been stealing cryptocurrency from digital wallets on Windows, Linux and macOS platforms (see: ElectroRAT Malware Targets Cryptocurrency Wallets). The researchers say that once the malware has compromised a macOS device, it will seek to kill several processes, including Activity Monitor, which prevents the user from inspecting resource usage.

#Malware used runonly applescripts to avoid software

  • A script that downloads and sets up XMR-STAK-RX, a free, open-source monero RandomX miner software package.
  • An anti-analysis AppleScript to perform evasion tasks from certain consumer-level monitoring and cleanup tools.

    • #Malware used runonly applescripts to avoid serial number

  • A parent script for gathering the device serial number and for killing all the running processes in the device.
  • A script to ensure persistence for the parent script.
    • Once those embedded scripts were decompiled, the researchers determined the malware uses four methods to execute the run-only AppleScript: The Sentinel Labs team found the malware authors had embedded additional characters to obfuscate its processes. To decompile the malicious malware scripts, Sentinel Labs researchers had to use a relatively lesser-known AppleScript-disassembler project and another custom tool developed by the security firm. OSAMiner uses run-only AppleScripts to make reverse-engineering of its code difficult, the researchers say. "Recent versions of macOS.OSAMiner add greater complexity by embedding one run-only AppleScript inside another, further complicating the already difficult process of analysis." Security Evasion The creators of the malware used processes that were specifically designed to evade detection and analysis by security researchers.

    #Malware used runonly applescripts to avoid full

    "In late 2020, we discovered that the malware authors, presumably building on their earlier success in evading full analysis, had continued to develop and evolve their techniques," says Phil Stokes, a threat researcher at Sentinel Labs. The OSAMiner hijacked the hardware resources of infected users to mine cryptocurrency. OSAMiner's operators released the latest version of the cryptominer in 2020, but researchers only recently discovered the enhancements, according to the researchers' report. The malware now uses multiple versions of AppleScript - a scripting language used in macOS devices - to support obfuscation. OSAMiner, which has been active since 2015, has been distributed through hacked video games, such as League of Legends, as well as compromised versions of software packages, including Microsoft Office for macOS, Sentinel Labs says. The latest iteration uses new techniques to help prevent detection by security tools, the researchers report. See Also: Webinar | Prevent, Detect & Restore: Data Security Backup Systems Made Easy "The fact that this new Linux malware toolset has been in the wild for the better part of the last decade without having been detected and publicly documented prior to this report makes it highly probable that the number of impacted organizations is significant and the duration of the infections lengthy.Sentinel Labs researchers have identified an updated version of the cryptominer OSAMiner that targets the macOS operating system to mine for monero. "This report detailed how this quintet of threat actor groups have managed to successfully infiltrate and maintain persistence on servers that comprise the backbone of the majority of large data centers using a newly identified Linux malware toolset obfuscated by a kernel-level module rootkit, all of which allows them to remain nearly undetectable on the infected systems," the report read.

    malware used runonly applescripts to avoid

    #Malware used runonly applescripts to avoid mac os

    Since users install the pirated software themselves, this bypasses Mac OS protections.Īnd interesting that it went undetected for five years. The malware is tracked as OSAMiner and has been in the wild since at least 2015. Named OSAMiner, the malware has been distributed in the wild since at least 2015 disguised in pirated (cracked) games and software such as League of Legends and Microsoft Office for Mac, security firm SentinelOne said in a report published this week. A cryptocurrency mining campaign targeting macOS is using malware that has evolved into a complex variant giving researchers a lot of trouble analyzing it.








    Malware used runonly applescripts to avoid
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