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Added to the Dr.Web virus database: 2020-04-26

Virus description added:

Technical Information

To ensure autorun and distribution
Creates or modifies the following files
  • <SYSTEM32>\tasks\nyan
Creates the following files on removable media
  • <Drive name for removable media>:\windows defend.exe
  • <Drive name for removable media>:\correct.lnk
  • <Drive name for removable media>:\delete.lnk
  • <Drive name for removable media>:\join.lnk
  • <Drive name for removable media>:\split.lnk
Modifies file system
Creates the following files
  • %TEMP%\windows defend.exe
Sets the 'hidden' attribute to the following files
  • <Drive name for removable media>:\windows defend.exe
Deletes the following files
  • %TEMP%\windows defend.exe
  • <SYSTEM32>\tasks\nyan
Creates and executes the following
  • '%TEMP%\windows defend.exe'
  • '<SYSTEM32>\schtasks.exe' /Delete /tn NYAN /F' (with hidden window)
  • '<SYSTEM32>\schtasks.exe' /create /tn NYAN /tr "<Full path to file>" /sc minute /mo 1' (with hidden window)
  • '<Full path to file>' ' (with hidden window)
  • '<SYSTEM32>\schtasks.exe' /create /tn NYAN /tr "%TEMP%\windows defend.exe" /sc minute /mo 1' (with hidden window)
Executes the following
  • '<SYSTEM32>\schtasks.exe' /Delete /tn NYAN /F
  • '<SYSTEM32>\schtasks.exe' /create /tn NYAN /tr "<Full path to file>" /sc minute /mo 1
  • '<SYSTEM32>\taskeng.exe' {DB6859E8-6D6F-4F01-A93F-AFADB3DE506B} S-1-5-21-1960123792-2022915161-3775307078-1001:pspodzu\user:Interactive:[1]
  • '<SYSTEM32>\schtasks.exe' /create /tn NYAN /tr "%TEMP%\windows defend.exe" /sc minute /mo 1
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