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1. Malware years runonly applescripts to avoid cracked#
2. Malware years runonly applescripts to avoid full#

Malware years runonly applescripts to avoid cracked#

Investigations at the time concluded that macOS.OSAMiner, as we have dubbed it, had likely been circulating since 2015, distributed in popular cracked games and software such as League of Legends and MS Office.Īlthough some IoCs were retrieved from the wild and from dynamic execution by researchers, the fact that the malware authors used run-only AppleScripts prevented much further analysis. Indeed, 360 MeshFire Team reported that the malicious applications:Ī similar conclusion was reached by another Chinese security researcher trying to dynamically analyse a different sample of macOS.OSAMiner in 2020, noting that “No reverse method has been found…so the investigation ends here” Years runonly applescripts to avoid detection cracked#

Malware years 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. Years runonly applescripts to avoid detection full# Recent versions of macOS.OSAMiner add greater complexity by embedding one run-only AppleScript inside another, further complicating the already difficult process of analysis. However, with the help of a little-known applescript-disassembler project and a decompiler tool we developed here at SentinelLabs, we have been able to reverse these samples and can now reveal for the first time their internal logic along with further IoCs used in the campaign. A Malicious Run-Only AppleScript (or Two) We believe that the method we used here is generalizable to other run-only AppleScripts and we hope this research will be helpful to others in the security community when dealing with malware using the run-only AppleScript format. While malware hunting on VirusTotal, we came across the following property list:ĩad23b781a22085588dd32f5c0a1d7c5d2f6585b14f1369fd1ab056cb97b0702Īs noted above, we have seen this before in 2018 and earlier in 2020. In the 2018 version, the malware tries to disguise itself as belonging to both “apple.Google” and “apple.Yahoo”: The older persistence agents are almost identical save for the labels and names of the targeted executable.

Years runonly applescripts to avoid detection full#.Years runonly applescripts to avoid detection cracked#.