cavelobi.blogg.se

1. #Macos runonly applescripts avoid detection for cracked#
2. #Macos runonly applescripts avoid detection for software#
3. #Macos runonly applescripts avoid detection for code#

However, it is quite clear that using pirated software will ensure the malware continues to have vulnerable Apple macOS computers. It reveals the full-chain of this attack, along with Indicators Of Compromise (IOCs) of past and newer OSAMiner campaigns. SentinelOne macOS malware researcher Phil Stokes has published a detailed report. Apparently, the third AppleScript contained the actual OSAMiner malware or “payload”. This script would silently download and run a second run-only AppleScript, and then another final third run-only AppleScript. Īs users installed the pirated software, the malware installer would silently download and run a run-only AppleScript. Mac malware OSAMiner has released a variant that uses multiple 'run-only' AppleScripts, making it difficult to detect and analyze. Incidentally, the malware’s initial size was quite small.

It seems the creators of the malware obtained different variants of pirated software and injected the malware inside. As piracy is common in Southeast Asia, the malware was quite active in these regions.

#Macos runonly applescripts avoid detection for cracked#

How did the malware infect and spread on an Apple macOS computer?Īs mentioned earlier, the OSAMiner malware creators depended heavily on the distribution, download, and widespread use of illegally obtained and cracked software. Although a heightened security measure, this makes analysis a lot harder for external or third-party security researchers.

#Macos runonly applescripts avoid detection for code#

In other words, the source code isn’t human-readable. This was because the malware used nested run-only AppleScript files to retrieve its malicious code across different stages.ĪppleScripts arrive in a compiled state. Incidentally, security researchers weren’t able to retrieve the malware’s entire code when they had sensed its activities back in 2018. Red Siege Information Security January 12, 2021 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. From what data we have it appears to be mostly targeted at Chinese/Asia-Pacific communities.” “OSAMiner has been active for a long time and has evolved in recent months. The malware has been researched in the past, but the run-only AppleScript file. The distribution is active since at least 2015, indicated security firm SentinelOne in a report published this week. SentinelOne's analyses the OSAMiner macOS cryptocurrency-mining malware that, thanks to its use of run-only AppleScripts, stayed under the radar for a long time also open sources the AEVT decompiler tool /TqIAl8QcmrĪccording to security researchers, the OSAMiner malware was distributed inside pirated (cracked) games and software such as League of Legends and Microsoft Office for Mac. The creators of the malware used processes that were specifically designed to evade detection and analysis by security researchers. The OSAMiner hijacked the hardware resources of infected users to mine cryptocurrency.