(Photo source: Pony Strike: Global Offense by FilipinoNinja95)
Best anyfile opener mac 2018 download. We recently found Counter-Strike: Global Offensive (CS: Go) hacks on macOS that is also a trojan that could mine CryptoCurrencies without user consent.
According to VirusTotal Retrohunt, the threat is in the wild since the beginning of July 2017.
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Warning: At the time of this writing, all URLs are live.
Entry Point: Vlone.cc Portal
The yuppie handbook 1984 book. The entry point is vlone.cc portal, where a user can Register, Login and Download for free the hack installer.
X265 app for mac. The domain name was registered through eNom in April 2017, 14th, and resolves to a shared web host at namecheap:
HTTPS certificate was delivered by COMODO PositiveSSL Verizon in home agent download mac. in June 2017, 27th.
When logged in, members can browse the Prices page and purchase a premium subscription for 1, 3 or 6 months through Selly:
Members download the same archive of the free installer than guests:
According to the
user GET query value, members count in August 2017, 22nd, is nearly two thousand.
We don’t know if the private installer of the hack also installs the mining software without user consent.
Binaries analysis
It’s all C++ Standard Library code. Network connections use libcurl and secure HTTPS protocol.
All executables, but the miner CLI, require super-user privileges, so the user must run the installer with
sudo :
The main binary hides itself as Dynamic Web TWAIN, an online document scanning platform.
vHookvHook is the installer. It is packed with UPX, probably to avoid user analysis and bypass some security products.
It is a command line interface:
With a valid member account, it downloads and extracts
bootstrap.dylib and vhook.dylib from https://vlone.cc/portal/gateway.php as assets.zip to /Library/Application Support/ :
It loads
bootstrap.dylib from osxinj project. If Counter-Strike: Global Offensive is running, it downloads and extracts some fonts (https://vlone.cc/fontfix.zip as vlone.zip to /Library/Fonts/ ), and injects vhook.dylib into csgo_osx64 process.
It could be a perfect deal for a CS: GO user, but it turns out
vHook also sneaky downloads and extracts https://vlone.cc/abc/assets/asset.zip as fonts.zip to /var/ , changes directory to /var and runs sudo ./helper & .
It then kills Terminal application to hide the detached process output.
helperhelper is the miner downloader dropper. It is also packed with UPX.
It first asks the C&C server for the name of the binary to execute upon download:
It downloads
https://www.vlone.cc/abc/assets/b.zip as /b.zip , extracts its contents to /var/.log/ , changes directory to /var/.log/ and runs sudo ./com.dynamsoft.WebHelper & .
At the time of this writing,
https://www.vlone.cc/abc/assets/b.zip URL response is a File Not Found 404 error code, but https://www.vlone.cc/abc/assets/bz.zip URL is live and send the expected archive.
![]() com.dynamsoft.WebHelpercom.dynamsoft.WebHelper is the miner downloader. Despite the name, it is not related to Dynamsoft.
It starts by downloading and extracting:
It loads the daemon, sends computer unique identifier (UUID) and its version to C&C server, and checks if it
meetsRequirements() , i.e. running as root and not in a debugger:
It then sleeps for one hour. Should i download mac os 10.14. If one is in a hurry, he or she can cut out the nap easily:
Once rested, it sends commands to C&C server every minute to ask if it should mine and update or kill itself:
Every minute, it also creates or updates the mining thread to:
WebTwainServiceWebTwainService tries to take care of com.dynamsoft.webhelper persistency. It is again packed with UPX.
It sets its current directory to
/var/.log and runs sudo ./com.dynamsoft.webhelper & , then recursively sleeps for one hour…
minergate-clicom.apple.SafariHelper actually is the official MinerGateCLI v4.04:
It is written in Qt, so it comes with frameworks:
It takes as CPU as requested by
com.dynamsoft.WebHelper so the user enjoys the delight of computer’s fans background music:
How to get itunes on mac. In this example, it is mining Monero (XMR) with all virtual machine cores (two: 200.0%).
Current MinerGate email address is
[email protected] , and [email protected] email address was also found hardcoded in another sample.
Maximum core number, CryptoCurrency and email address are provided by
com.dynamsoft.WebHelper and the C&C server:
vLoader
We finally ended up with
vLoader , the private installer, and, once more, it is packed with UPX. Jpg to webp converter mac download.
It does many checks against the C&C server:
They are trivial to bypass for anyone who can force a conditional jump:
Private payloads are downloaded and extracted to
/var/.old/ :
Compared to the free injected library, the private hook is very similar:
vLoader doesn’t uninstall any of the free version naughty payloads.
Finn and ponies
We didn’t spend too much time reverse engineering
vhook.dylib . The source code was available on GitHub (archive) and videos of the hack are also available on YouTube here and there.
GitHub owner of the vHook project is fetusfinn (original author is ViKiNG) and we coincidentally found debugger symbols matching Finn username in GitHub’s
libvHook.dylib and in all analyzed binaries:
Mac Os X Leopard
This is how we know Finn’s project name is
pwnednet . Shortened to pwnet, it sounds like poney in French, i.e. pony in English and, everybody loves ponies, so here you have OSX.Pwnet.A!
There also is a reference to someone named Jennifer Johansson in Xcode user data:
We didn’t take the time to ask pwned’s boyfriend on Discord if Finn is much into ponies:
But, just in case, here is a Dutch Pony for Finn and her team.
From Hackestria with ❤
Mac Os X 10.13
EDIT: added vLoader on 2017/08/29.
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