Technical Information
To ensure autorun and distribution
Modifies the following registry keys
- [HKCU\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'UpdateTask' = '%APPDATA%\svchost.exe'
Creates the following files on removable media
- <Drive name for removable media>:\skynetdata.txt
Malicious functions
To complicate detection of its presence in the operating system,
blocks execution of the following system utilities:
- Windows Task Manager (Taskmgr)
blocks the following features:
- System Restore (SR)
deletes volume shadow copies.
Injects code into
the following system processes:
- <SYSTEM32>\vds.exe
Modifies file system
Creates the following files
- %APPDATA%\svchost.exe
- %ALLUSERSPROFILE%\microsoft\windows\start menu\skynetdata.txt
- %ALLUSERSPROFILE%\microsoft\windows\caches\skynetdata.txt
- %APPDATA%\microsoft\windows\start menu\programs\winrar\skynetdata.txt
- %APPDATA%\microsoft\windows\start menu\programs\telegram desktop\skynetdata.txt
- %APPDATA%\microsoft\windows\start menu\programs\maintenance\skynetdata.txt
- %APPDATA%\microsoft\windows\start menu\programs\google chrome\skynetdata.txt
- %APPDATA%\microsoft\windows\start menu\programs\accessories\system tools\skynetdata.txt
- %APPDATA%\microsoft\windows\start menu\programs\accessories\accessibility\skynetdata.txt
- %APPDATA%\microsoft\windows\start menu\programs\accessories\skynetdata.txt
- %APPDATA%\microsoft\windows\start menu\programs\skynetdata.txt
- %APPDATA%\microsoft\windows\sendto\skynetdata.txt
- %APPDATA%\microsoft\internet explorer\quick launch\user pinned\taskbar\skynetdata.txt
- %TEMP%\skynetdata.txt
- %LOCALAPPDATA%\google\chrome\user data\default\extensions\pjkljhegncpnkpknbcohdijeoejaedia\7_0\skynetdata.txt
- %APPDATA%\microsoft\internet explorer\quick launch\skynetdata.txt
- %LOCALAPPDATA%\google\chrome\user data\default\extensions\coobgpohoikkiipiblmjeljniedjpjpf\0.0.0.19_0\skynetdata.txt
- %HOMEPATH%\links\skynetdata.txt
- %LOCALAPPDATA%\microsoft\windows\<INETFILES>\content.ie5\qkr46vql\skynetdata.txt
- %APPDATA%\microsoft\windows\themes\skynetdata.txt
- %ALLUSERSPROFILE%\microsoft\windows\start menu\programs\skynetdata.txt
- %LOCALAPPDATA%\microsoft\windows\wer\reportqueue\critical_microsoft .net f_5deabd23d637fc27acf7bfdd613025667396c824_cab_0aad3c95\skynetdata.txt
- %ALLUSERSPROFILE%\microsoft\windows\start menu\programs\java\skynetdata.txt
- %ALLUSERSPROFILE%\microsoft\windows\start menu\programs\winrar\skynetdata.txt
- %ALLUSERSPROFILE%\microsoft\windows\start menu\programs\steam\skynetdata.txt
- %ALLUSERSPROFILE%\microsoft\windows\start menu\programs\sharepoint\skynetdata.txt
- %ALLUSERSPROFILE%\microsoft\windows\start menu\programs\administrative tools\skynetdata.txt
- %ALLUSERSPROFILE%\microsoft\windows\start menu\programs\accessories\windows powershell\skynetdata.txt
- %ALLUSERSPROFILE%\microsoft\windows\start menu\programs\microsoft office\microsoft office 2010 tools\skynetdata.txt
- %ALLUSERSPROFILE%\microsoft\windows\start menu\programs\accessories\tablet pc\skynetdata.txt
- %APPDATA%\telegram desktop\skynetdata.txt
- %APPDATA%\thunderbird\profiles\npsdfqy3.default-release\skynetdata.txt
- %ALLUSERSPROFILE%\microsoft\windows\start menu\programs\microsoft office\skynetdata.txt
- %APPDATA%\mozilla\firefox\profiles\yfwt7ezn.default-release-1\skynetdata.txt
- %APPDATA%\mozilla\firefox\profiles\bcjnbgva.default\skynetdata.txt
- %LOCALAPPDATA%\microsoft\windows mail\stationery\skynetdata.txt
- %ALLUSERSPROFILE%\microsoft\windows\start menu\programs\accessories\system tools\skynetdata.txt
- %ALLUSERSPROFILE%\microsoft\windows\start menu\programs\accessories\accessibility\skynetdata.txt
- %ALLUSERSPROFILE%\microsoft\windows\start menu\programs\accessories\skynetdata.txt
- %APPDATA%\mozilla\firefox\profiles\0j9e9tku.default-release\skynetdata.txt
- %ALLUSERSPROFILE%\microsoft\windows\start menu\programs\games\skynetdata.txt
- %HOMEPATH%\favorites\windows live\skynetdata.txt
- %ALLUSERSPROFILE%\package cache\{fd9b6070-d13e-45dc-819b-41806bf45b6b}\skynetdata.txt
- %HOMEPATH%\favorites\msn websites\skynetdata.txt
- %LOCALAPPDATA%\google\chrome\user data\default\databases\skynetdata.txt
- C:\users\default\appdata\roaming\microsoft\windows\start menu\programs\accessories\skynetdata.txt
- %LOCALAPPDATA%\google\chrome\user data\default\skynetdata.txt
- C:\users\default\appdata\roaming\microsoft\windows\sendto\skynetdata.txt
- %LOCALAPPDATA%\google\chrome\application\42.0.2311.135\visualelements\skynetdata.txt
- C:\users\default\appdata\roaming\microsoft\internet explorer\quick launch\skynetdata.txt
- C:\users\default\skynetdata.txt
- %LOCALAPPDATA%\google\chrome\application\42.0.2311.135\installer\skynetdata.txt
- C:\users\public\videos\sample videos\skynetdata.txt
- %LOCALAPPDATA%\google\chrome\application\42.0.2311.135\skynetdata.txt
- C:\users\public\pictures\sample pictures\skynetdata.txt
- %LOCALAPPDATA%\google\chrome\application\skynetdata.txt
- %LOCALAPPDATA%\skynetdata.txt
- C:\users\public\music\sample music\skynetdata.txt
- %ALLUSERSPROFILE%\adobe\setup\{ac76ba86-7ad7-1033-7b44-ac0f074e4100}\skynetdata.txt
- C:\kms\skynetdata.txt
- <Current directory>\skynetdata.txt
- %ALLUSERSPROFILE%\microsoft\office\skynetdata.txt
- C:\users\default\appdata\roaming\microsoft\windows\start menu\programs\accessories\accessibility\skynetdata.txt
- C:\users\default\appdata\roaming\microsoft\windows\start menu\programs\accessories\system tools\skynetdata.txt
- %LOCALAPPDATA%\google\chrome\user data\default\extensions\aohghmighlieiainnegkcijnfilokake\0.0.0.6_0\skynetdata.txt
- %HOMEPATH%\favorites\microsoft websites\skynetdata.txt
- %ALLUSERSPROFILE%\package cache\{ca67548a-5ebe-413a-b50c-4b9ceb6d66c6}\skynetdata.txt
- %HOMEPATH%\favorites\links for united states\skynetdata.txt
- %HOMEPATH%\favorites\links\skynetdata.txt
- %ALLUSERSPROFILE%\package cache\{38b2c744-ad08-4d5b-91a2-3fb6f739ff3e}\skynetdata.txt
- %ALLUSERSPROFILE%\microsoft\user account pictures\skynetdata.txt
- %LOCALAPPDATA%\google\chrome\user data\default\extensions\blpcfgokakmgnkcojhhkbfbldkacnbeo\4.2.5_0\skynetdata.txt
- %ALLUSERSPROFILE%\package cache\{33d1fd90-4274-48a1-9bc1-97e33d9c2d6f}\skynetdata.txt
- %ALLUSERSPROFILE%\package cache\{050d4fc8-5d48-4b8f-8972-47c82c46020f}\skynetdata.txt
- %ALLUSERSPROFILE%\package cache\{295d1583-fdb9-414b-a4c8-da539362a26b}\skynetdata.txt
- %LOCALAPPDATA%low\microsoft\internet explorer\services\skynetdata.txt
- %HOMEPATH%\desktop\skynetdata.txt
- %ALLUSERSPROFILE%\oracle\java\javapath\skynetdata.txt
- %ALLUSERSPROFILE%\microsoft\rac\statedata\skynetdata.txt
- %ALLUSERSPROFILE%\microsoft\officesoftwareprotectionplatform\cache\skynetdata.txt
- %LOCALAPPDATA%\google\chrome\user data\default\extensions\apdfllckaahabafndbhieahigkjlhalf\6.2_0\skynetdata.txt
- %ALLUSERSPROFILE%\microsoft\officesoftwareprotectionplatform\skynetdata.txt
- C:\users\default\appdata\roaming\microsoft\windows\start menu\programs\maintenance\skynetdata.txt
- %ALLUSERSPROFILE%\package cache\{f65db027-aff3-4070-886a-0d87064aabb1}\skynetdata.txt
- %ALLUSERSPROFILE%\microsoft\windows\start menu\programs\maintenance\skynetdata.txt
Modifies the following files
- C:\kms\kms_vl_all_aio.cmd
- %LOCALAPPDATA%\google\chrome\application\42.0.2311.135\visualelements\smalllogo.png
- C:\users\default\appdata\roaming\microsoft\windows\sendto\fax recipient.lnk
- %LOCALAPPDATA%\google\chrome\application\42.0.2311.135\visualelements\logo.png
- C:\users\default\appdata\roaming\microsoft\internet explorer\quick launch\window switcher.lnk
- C:\users\default\appdata\roaming\microsoft\internet explorer\quick launch\shows desktop.lnk
- C:\users\default\ntuser.dat
- %LOCALAPPDATA%\google\chrome\application\42.0.2311.135\installer\chrome.7z
- C:\users\public\videos\sample videos\wildlife.wmv
- %LOCALAPPDATA%\google\chrome\application\42.0.2311.135\secondarytile.png
- C:\users\public\pictures\sample pictures\tulips.jpg
- C:\users\public\pictures\sample pictures\penguins.jpg
- C:\users\public\pictures\sample pictures\lighthouse.jpg
- %LOCALAPPDATA%\google\chrome\application\42.0.2311.135\icudtl.dat
- C:\users\public\pictures\sample pictures\koala.jpg
- C:\users\public\pictures\sample pictures\jellyfish.jpg
- %LOCALAPPDATA%\google\chrome\application\42.0.2311.135\42.0.2311.135.manifest
- C:\users\public\pictures\sample pictures\hydrangeas.jpg
- C:\users\public\pictures\sample pictures\desert.jpg
- C:\users\public\pictures\sample pictures\chrysanthemum.jpg
- C:\users\public\music\sample music\sleep away.mp3
- C:\users\public\music\sample music\maid with the flaxen hair.mp3
- C:\users\public\music\sample music\kalimba.mp3
- C:\users\public\desktop\steam.lnk
- C:\users\public\desktop\opera.lnk
- C:\users\public\desktop\mozilla thunderbird.lnk
- C:\users\public\desktop\firefox.lnk
- C:\users\public\desktop\acrobat reader dc.lnk
- %LOCALAPPDATA%\google\chrome\application\42.0.2311.135\visualelements\splash-620x300.png
- %LOCALAPPDATA%\google\chrome\user data\default\google profile.ico
Modifies multiple files.
Deletes itself.
Modifies user data files (Trojan.Encoder).
Miscellaneous
Creates and executes the following
- '%APPDATA%\svchost.exe'
- '<SYSTEM32>\cmd.exe' /C vssadmin delete shadows /all /quiet & wmic shadowcopy delete' (with hidden window)
- '<SYSTEM32>\cmd.exe' /C bcdedit /set {default} bootstatuspolicy ignoreallfailures & bcdedit /set {default} recoveryenabled no' (with hidden window)
- '<SYSTEM32>\cmd.exe' /C wbadmin delete catalog -quiet' (with hidden window)
Executes the following
- '<SYSTEM32>\cmd.exe' /C vssadmin delete shadows /all /quiet & wmic shadowcopy delete
- '<SYSTEM32>\cmd.exe' /C bcdedit /set {default} bootstatuspolicy ignoreallfailures & bcdedit /set {default} recoveryenabled no
- '<SYSTEM32>\bcdedit.exe' /set {default} bootstatuspolicy ignoreallfailures
- '<SYSTEM32>\cmd.exe' /C wbadmin delete catalog -quiet
- '<SYSTEM32>\wbadmin.exe' delete catalog -quiet
- '<SYSTEM32>\wbengine.exe'
- '<SYSTEM32>\vds.exe'
