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EvilAI Hydra7 / Hydraseven TamperedChef SolarMarker
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TamperedChef: Suspicious Recipe App is really Malware

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Hello World!  Let me introduce you to a new malware I'm calling TamperedChef .  Yesterday I came across the article Malvertising Alert: Recipe App Hijacks Credentials and Appears to Establish C&C Connection . This got me curious, so I decided to dig a bit deeper. I manually went to recipelister ( VirusTotal )  and downloaded recipelister.exe.  After reading the aforementioned blog, which observed the 7z-out folder, I figured why not use 7zip to extract recipelister.exe. Within the compressed file was app-64.7z, which I again extracted I extracted using 7zip.  At this point we have the main contents of what would appear in "AppData\Local\Temp\2w1rXpxZnwDUwuTeNvdD6FUkeI0".  Extracting app.asar: In order to extract app.asar to be easier to look at, I used this 7z asar plugin .  This is where things get interesting. When we start looking at main.js, all the while running Fiddler, we  observe a lot of suspicious code and activity.  The main.j...
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EvilAI: Fake Online Speedtest Application

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Several Windows applications that present themselves as legitimate utilities—Internet speed testers, “manual reader” and “finder” tools, certain PDF utilities, and even some AI search frontends such as   justaskjacky   have been observed to drop a portable Node runtime folder alongside a heavily obfuscated JavaScript payload. The visible executable performs as expected to the users, however the installer also extracts the Node runtime, a scheduled task, and  an obfuscated *.js file that don’t appear necessary for the application's primary function. That JavaScript is executed by the dropped Node instance via a scheduled task (observed to run on roughly a 12-hour cycle). Its capabilities include encoded/obfuscated network communications and the potential to execute arbitrary code delivered by the server. Because the JS runs independently from the main executable and is persistent via scheduled tasks, it significantly increases the attack surface:...
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Suspicious Converter: Obfuscated Strings, Silent Tasks, and a Covert Update Channel

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I've seen a lot of chatter on X about ConvertMate.exe So I took another look at it today. What it is This is another file conversion application. It is a .Net application that as the installer drops files into AppData\Local\ConvertMate and creates a scheduled task called ConvertMateTask. The files it unpacks and drops include a smaller file named Convert Mate.exe (with a space), and id.txt (unique identifier), some supporting dlls, an uninstaller.exe, and UpdateRetreiver.exe . Red Flags Contains reverse strings and simple obfuscation launces a PS1 file to create the scheduled task Uninstaller and Add/Remove Programs only removes desktop icon and reg key.  UpdateRetreiver checks in daily and if domain returns response it AES decrypts the response Interesting strings in ConvertMate installer this.logicManager.SendPixel("https://banifuri[.]com/pixel"); string text = this.rev("exe.emorhc\\noitacilppA\\emorhC\\elgooG\\)68x( seliF margorP\\:C"); string t...
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