YEARS RUNONLY APPLESCRIPTS TO AVOID DETECTION FULL
Is it hot in here? Phil Stokes the fire- Adventures in Reversing Malicious Run-Only AppleScripts: OSAMiner is a cryptominer campaign that has resisted full researcher analysis for at least five years. Macos malware runonly avoid detection five full# … One of the nice things about AppleScript is not only does it have a magic at the beginning of an AppleScript file it also has one to mark the end of the script: … fa de de ad or FADE DEAD. Run-only AppleScripts are surprisingly rare in the macOS malware world, but both the longevity of and the lack of attention to the macOS.OSAMiner campaign … shows exactly how powerful run-only AppleScripts can be for evasion and anti-analysis. In this case, we have not seen the actor use any of the more powerful features of AppleScript … but that is an attack vector that remains wide open and which many defensive tools are not equipped to handle. In the event that other threat actors begin picking up on the utility of … run-only AppleScripts, we hope this research and the tools discussed above will prove to be of use to analysts. īut this Anonymous Coward thinks Phil is hyping it up a bit: applescript-disassembler has been around for at least four years and it's just one "run only AppleScript" disassembler.
However, nneonneo has more nuance "Run-only" AppleScript is compiled to a bytecode format that is very poorly documented. … I can't be too surprised that run-only AppleScript ended up as a good malware vector: It's so poorly documented, and there are so few tools to understand it, that it could easily fly under the radar. Trojans gonna … Troje? 93 Escort Wagon drives it home: Sounds like if you haven't been pirating software, you don't have to worry about it. Push the button, numpad0: There are people who actively avoid official distribution, thinking … anything should come through a middle man. What the heck is a run-only script? Is that like write-only memory? CaptQuark leads a charmed life: "Run Only" just means it has been processed into a compacted version of the program that isn't easy to edit. It wasn't meant to be easy to read, understand, or edit, thus the name "run only." They could have named it AppleScript Bytecode if you think that's a better phrase. And jandrese agrees: I thought there was some kind of weird Apple permission thing where you could mark a binary as unreadable but somehow could still be run to evade malware detection. What undebuggable, badly documented legacy is hiding in your platform? How could it be misused? And finally Meanwhile, what is with wtfiswiththis? Anyone remember the "Macs don't need antivirus" answer on Apple's FAQ from years ago? The moral of the story? But it seems like this technical article author is just unfamiliar with the concept of compiling. Macos malware runonly avoid detection five mac#.Macos malware runonly avoid detection five download#.Macos malware runonly avoid detection five code#.Macos malware runonly avoid detection five full#.
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