- Distribution Method : Unknown
- MD5 : c3d775fdf89a81e1d700abaee7abc9f4
- Major Detection Name : Trojan.Ransom.choda (ALYac), a variant of Win32/Filecoder.Crypt888.B (ESET)
- Encrypted File Pattern : Lock.<Original Filename>.<Original Extension>
- Malicious File Creation Location :
- C:\Users\%UserName%\AppData\Local\Temp\8x8x8
- C:\Users\%UserName%\AppData\Local\Temp\wl.jpg
- Major Characteristics :
- Offline Encryption
- Encephalitis / GrodexCrypt / MicroCop Ransomware series
- AutoIt scripts based Ransomware
- Developed by a Korean
- Kill a web browser processes (chrome.exe / firefox.exe / iexplore.exe)
- Changes desktop background (C:\Users\%UserName%\AppData\Local\Temp\wl.jpg)
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