Technical Information
To ensure autorun and distribution
Modifies the following registry keys
- [<HKLM>\Software\Microsoft\Windows\CurrentVersion\Runonce] 'cmdrun' = 'cmd.exe /C ipconfig /flushdns'
Changes the following executable system files
- <SYSTEM32>\dllcache\dnsapi.dll
Substitutes the following executable system files
- <SYSTEM32>\dnsapi.dll with <SYSTEM32>\dnsapi.dll
Infects the following executable files
- <SYSTEM32>\dllcache\dnsapi.dll
- <SYSTEM32>\dnsapi.dll
Malicious functions
To complicate detection of its presence in the operating system,
modifies the following system settings:
- DNS server to '104.197.191.4'
Modifies file system
Creates the following files
- %TEMP%\nso2.tmp
- %APPDATA%\mozilla\firefox\profiles\22ie2h77.default\none
- <SYSTEM32>\diis\naig\wih.dat
- %APPDATA%\cecipgie\nakmeem.din
- %APPDATA%\cecipgie\resqi.exe
- %HOMEPATH%\Local Settings\tempfolder\nuuaauceqtedb\ssl3.dll
- %HOMEPATH%\Local Settings\tempfolder\nuuaauceqtedb\sqlite3.dll
- %HOMEPATH%\Local Settings\tempfolder\nuuaauceqtedb\softokn3.dll
- %HOMEPATH%\Local Settings\tempfolder\nuuaauceqtedb\smime3.dll
- %HOMEPATH%\Local Settings\tempfolder\nuuaauceqtedb\nssutil3.dll
- %APPDATA%\thunderbird\profiles\cr5sc40q.default\none
- %HOMEPATH%\Local Settings\tempfolder\nuuaauceqtedb\nssdbm3.dll
- %HOMEPATH%\Local Settings\tempfolder\nuuaauceqtedb\nss3.dll
- %HOMEPATH%\Local Settings\tempfolder\nuuaauceqtedb\libplds4.dll
- %HOMEPATH%\Local Settings\tempfolder\nuuaauceqtedb\libplc4.dll
- %HOMEPATH%\Local Settings\tempfolder\nuuaauceqtedb\libnspr4.dll
- %HOMEPATH%\Local Settings\tempfolder\nuuaauceqtedb\freebl3.dll
- %HOMEPATH%\Local Settings\tempfolder\nuuaauceqtedb\suvgposbetl.dat
- %HOMEPATH%\Local Settings\tempfolder\nuuaauceqtedb\opabhramdag.exe
- %TEMP%\nso3.tmp\stdutils.dll
- %TEMP%\nso3.tmp\system.dll
- %HOMEPATH%\Local Settings\tempfolder\nuuaauceqtedb\nssckbi.dll
- %TEMP%\certsff.dat
Deletes the following files
- %TEMP%\certsff.dat
- %HOMEPATH%\Local Settings\tempfolder\nuuaauceqtedb\suvgposbetl.dat
- %HOMEPATH%\Local Settings\tempfolder\nuuaauceqtedb\ssl3.dll
- %HOMEPATH%\Local Settings\tempfolder\nuuaauceqtedb\sqlite3.dll
- %HOMEPATH%\Local Settings\tempfolder\nuuaauceqtedb\softokn3.dll
- %HOMEPATH%\Local Settings\tempfolder\nuuaauceqtedb\smime3.dll
- %HOMEPATH%\Local Settings\tempfolder\nuuaauceqtedb\opabhramdag.exe
- %TEMP%\nso3.tmp\stdutils.dll
- %HOMEPATH%\Local Settings\tempfolder\nuuaauceqtedb\nssutil3.dll
- %HOMEPATH%\Local Settings\tempfolder\nuuaauceqtedb\nssckbi.dll
- %HOMEPATH%\Local Settings\tempfolder\nuuaauceqtedb\nss3.dll
- %HOMEPATH%\Local Settings\tempfolder\nuuaauceqtedb\libplds4.dll
- %HOMEPATH%\Local Settings\tempfolder\nuuaauceqtedb\libplc4.dll
- %HOMEPATH%\Local Settings\tempfolder\nuuaauceqtedb\libnspr4.dll
- %HOMEPATH%\Local Settings\tempfolder\nuuaauceqtedb\freebl3.dll
- %HOMEPATH%\Local Settings\tempfolder\nuuaauceqtedb\nssdbm3.dll
- %TEMP%\nso3.tmp\system.dll
Moves the following system files
- from <SYSTEM32>\dnsapi.dll to %TEMP%\ds4821.bin
Substitutes the following files
- %TEMP%\certsff.dat
Miscellaneous
Adds a root certificate
Creates and executes the following
- '%HOMEPATH%\Local Settings\tempfolder\nuuaauceqtedb\opabhramdag.exe' spa="%APPDATA%\CecipGie\Resqi.exe"
- '<SYSTEM32>\ipconfig.exe' /renew' (with hidden window)
Executes the following
- '<SYSTEM32>\ipconfig.exe' /renew
