Technical Information
To ensure autorun and distribution
Creates the following files on removable media
- <Drive name for removable media>:\recovery information.txt
- <Drive name for removable media>:\weeklysheet1215.doc
- <Drive name for removable media>:\default.bmp
- <Drive name for removable media>:\contoso.cer
- <Drive name for removable media>:\sdksampleunprivdeveloper.cer
- <Drive name for removable media>:\contosoroot_1.cer
- <Drive name for removable media>:\testcertificate.cer
- <Drive name for removable media>:\february_catalogue__2015.doc
- <Drive name for removable media>:\testee.cer
- <Drive name for removable media>:\pmd.cer
- <Drive name for removable media>:\dial.bmp
- <Drive name for removable media>:\tileimage.bmp
- <Drive name for removable media>:\000814251_video_01.avi
- <Drive name for removable media>:\dialmap.bmp
- <Drive name for removable media>:\coffee.bmp
- <Drive name for removable media>:\contosoroot.cer
- <Drive name for removable media>:\delete.avi
Malicious functions
To complicate detection of its presence in the operating system,
blocks the following features:
- System Restore (SR)
deletes volume shadow copies.
Injects code into
the following system processes:
- %WINDIR%\microsoft.net\framework\v4.0.30319\msbuild.exe
Modifies file system
Creates the following files
- %TEMP%\iijycdgkvnfljmkkill$.bat
- D:\$recycle.bin\s-1-5-21-1960123792-2022915161-3775307078-1001\recovery information.txt
- D:\$recycle.bin\recovery information.txt
- D:\recovery information.txt
Modifies the following files
- D:\install.log
- <Drive name for removable media>:\february_catalogue__2015.doc
- <Drive name for removable media>:\contoso.cer
- <Drive name for removable media>:\sdksampleunprivdeveloper.cer
- <Drive name for removable media>:\contosoroot_1.cer
- <Drive name for removable media>:\testcertificate.cer
- <Drive name for removable media>:\testee.cer
- <Drive name for removable media>:\contosoroot.cer
- <Drive name for removable media>:\weeklysheet1215.doc
- <Drive name for removable media>:\pmd.cer
- <Drive name for removable media>:\tileimage.bmp
- <Drive name for removable media>:\default.bmp
- <Drive name for removable media>:\dialmap.bmp
- <Drive name for removable media>:\archer.avi
- <Drive name for removable media>:\coffee.bmp
- <Drive name for removable media>:\000814251_video_01.avi
- <Drive name for removable media>:\delete.avi
- <Drive name for removable media>:\dial.bmp
- <Drive name for removable media>:\cveuropeo.doc
Modifies user data files (Trojan.Encoder).
Network activity
Connects to
- '91.##3.44.142':80
- '22#.0.0.22':445
- '22#.0.0.22':135
TCP
HTTP GET requests
- http://91.##3.44.142/arx-Zroszgcyo_Naqnxpvk.bmp
Miscellaneous
Creates and executes the following
- '%WINDIR%\syswow64\cmd.exe' /c timeout 20' (with hidden window)
- '<SYSTEM32>\vssadmin.exe' delete shadows /all /quiet' (with hidden window)
- '<SYSTEM32>\cmd.exe' /c bcdedit /set {current} bootstatuspolicy ignoreallfailures' (with hidden window)
- '<SYSTEM32>\cmd.exe' /c bcdedit /set {current} recoveryenabled no' (with hidden window)
Executes the following
- '%WINDIR%\syswow64\cmd.exe' /c timeout 20
- '%WINDIR%\syswow64\cacls.exe' %WINDIR%\SysWOW64\cmd.exe /e /g system:r
- '%WINDIR%\syswow64\cacls.exe' %WINDIR%\SysWOW64\cmd.exe /e /d mssql$sqlexpress
- '%WINDIR%\syswow64\takeown.exe' /f <SYSTEM32>\net.exe /a
- '%WINDIR%\syswow64\cacls.exe' <SYSTEM32>\net.exe /g Administrators:f
- '%WINDIR%\syswow64\cacls.exe' <SYSTEM32>\net.exe /e /g Users:r
- '%WINDIR%\syswow64\cacls.exe' <SYSTEM32>\net.exe /e /g Administrators:r
- '%WINDIR%\syswow64\cacls.exe' <SYSTEM32>\net.exe /e /d SERVICE
- '%WINDIR%\syswow64\cacls.exe' <SYSTEM32>\net.exe /e /d mssqlserver
- '%WINDIR%\syswow64\cacls.exe' <SYSTEM32>\net.exe /e /d "network service"
- '%WINDIR%\syswow64\cacls.exe' <SYSTEM32>\net.exe /e /d mssql$sqlexpress
- '%WINDIR%\syswow64\takeown.exe' /f <SYSTEM32>\net1.exe /a
- '%WINDIR%\syswow64\takeown.exe' /f %WINDIR%\SysWOW64\net.exe /a
- '%WINDIR%\syswow64\cacls.exe' %WINDIR%\SysWOW64\net.exe /g Administrators:f
- '%WINDIR%\syswow64\cacls.exe' %WINDIR%\SysWOW64\net.exe /e /g Users:r
- '%WINDIR%\syswow64\cacls.exe' %WINDIR%\SysWOW64\net.exe /e /g Administrators:r
- '%WINDIR%\syswow64\cacls.exe' %WINDIR%\SysWOW64\net.exe /e /d SERVICE
- '%WINDIR%\syswow64\cacls.exe' %WINDIR%\SysWOW64\net.exe /e /d mssqlserver
- '%WINDIR%\syswow64\cacls.exe' %WINDIR%\SysWOW64\net.exe /e /d "network service"
- '%WINDIR%\syswow64\cacls.exe' %WINDIR%\SysWOW64\net.exe /e /d system
- '%WINDIR%\syswow64\cacls.exe' %WINDIR%\SysWOW64\net.exe /e /d mssql$sqlexpress
- '%WINDIR%\syswow64\cacls.exe' %WINDIR%\SysWOW64\cmd.exe /e /d "network service"
- '%WINDIR%\syswow64\cacls.exe' <SYSTEM32>\net.exe /e /d system
- '%WINDIR%\syswow64\cacls.exe' %WINDIR%\SysWOW64\cmd.exe /e /d mssqlserver
- '%WINDIR%\microsoft.net\framework\v4.0.30319\msbuild.exe'
- '%WINDIR%\syswow64\timeout.exe' 20
- '%WINDIR%\syswow64\cmd.exe' /c ""%TEMP%\Iijycdgkvnfljmkkill$.bat" "
- '%WINDIR%\syswow64\reg.exe' delete "HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Command Processor" /v "AutoRun" /f
- '%WINDIR%\syswow64\takeown.exe' /f <SYSTEM32>\cmd.exe /a
- '%WINDIR%\syswow64\cmd.exe' /S /D /c" echo y"
- '%WINDIR%\syswow64\cacls.exe' <SYSTEM32>\cmd.exe /g Administrators:f
- '%WINDIR%\syswow64\cacls.exe' <SYSTEM32>\cmd.exe /e /g Users:r
- '%WINDIR%\syswow64\cacls.exe' <SYSTEM32>\cmd.exe /e /g Administrators:r
- '%WINDIR%\syswow64\cacls.exe' <SYSTEM32>\cmd.exe /e /d SERVICE
- '%WINDIR%\syswow64\cacls.exe' <SYSTEM32>\cmd.exe /e /d mssqlserver
- '%WINDIR%\syswow64\cacls.exe' %WINDIR%\SysWOW64\cmd.exe /e /g Administrators:r
- '<SYSTEM32>\cmd.exe' /c bcdedit /set {current} bootstatuspolicy ignoreallfailures
- '<SYSTEM32>\cmd.exe' /c bcdedit /set {current} recoveryenabled no
- '<SYSTEM32>\bcdedit.exe' /set {current} bootstatuspolicy ignoreallfailures
- '%WINDIR%\syswow64\cacls.exe' <SYSTEM32>\cmd.exe /e /d "network service"
- '%WINDIR%\syswow64\cacls.exe' <SYSTEM32>\cmd.exe /e /g system:r
- '%WINDIR%\syswow64\cacls.exe' <SYSTEM32>\cmd.exe /e /d mssql$sqlexpress
- '%WINDIR%\syswow64\takeown.exe' /f %WINDIR%\SysWOW64\cmd.exe /a
- '%WINDIR%\syswow64\cacls.exe' %WINDIR%\SysWOW64\cmd.exe /g Administrators:f
- '%WINDIR%\syswow64\cacls.exe' %WINDIR%\SysWOW64\cmd.exe /e /g Users:r
- '%WINDIR%\syswow64\cacls.exe' %WINDIR%\SysWOW64\cmd.exe /e /d SERVICE
- '%WINDIR%\syswow64\cacls.exe' <SYSTEM32>\net1.exe /g Administrators:f
