Technical Information
To ensure autorun and distribution
Creates the following files on removable media
- <Drive name for removable media>:\wtfs1yi25-readme.txt
Malicious functions
To complicate detection of its presence in the operating system,
deletes volume shadow copies.
Reads files which store third party applications passwords
- %HOMEPATH%\desktop\64bit_notes.htm
- %HOMEPATH%\desktop\tree_view.htm
- %HOMEPATH%\desktop\toolbar.bmp
- %HOMEPATH%\desktop\tileimage.bmp
- %HOMEPATH%\desktop\split.avi
- %HOMEPATH%\desktop\pmd.cer
- %HOMEPATH%\desktop\lisp_success.doc
- %HOMEPATH%\desktop\join.avi
- %HOMEPATH%\desktop\trivial-merge.html
- %HOMEPATH%\desktop\iisstart.html
- %HOMEPATH%\desktop\holycrosschurchinstructions.docx
- %HOMEPATH%\desktop\file_p_00000000_1371597592.docx
- %HOMEPATH%\desktop\delete.avi
- %HOMEPATH%\desktop\dashborder_96.bmp
- %HOMEPATH%\desktop\contosoroot.cer
- %HOMEPATH%\desktop\contoso.cer
- %HOMEPATH%\desktop\browse.html
- %HOMEPATH%\desktop\howto-index.html
- %HOMEPATH%\desktop\weeklysheet1215.doc
Modifies file system
Creates the following files
- C:\wtfs1yi25-readme.txt
- %HOMEPATH%\documents\wtfs1yi25-readme.txt
- %HOMEPATH%\desktop\wtfs1yi25-readme.txt
- %HOMEPATH%\contacts\wtfs1yi25-readme.txt
- C:\users\public\videos\wtfs1yi25-readme.txt
- C:\users\public\recorded tv\wtfs1yi25-readme.txt
- C:\users\public\pictures\wtfs1yi25-readme.txt
- C:\users\public\music\wtfs1yi25-readme.txt
- C:\users\public\libraries\wtfs1yi25-readme.txt
- C:\users\public\favorites\wtfs1yi25-readme.txt
- C:\users\public\downloads\wtfs1yi25-readme.txt
- C:\users\public\documents\wtfs1yi25-readme.txt
- C:\users\public\desktop\wtfs1yi25-readme.txt
- C:\users\default\videos\wtfs1yi25-readme.txt
- C:\users\default\saved games\wtfs1yi25-readme.txt
- C:\users\default\pictures\wtfs1yi25-readme.txt
- C:\users\default\music\wtfs1yi25-readme.txt
- C:\users\default\links\wtfs1yi25-readme.txt
- C:\users\default\favorites\wtfs1yi25-readme.txt
- C:\users\default\downloads\wtfs1yi25-readme.txt
- C:\users\default\desktop\wtfs1yi25-readme.txt
- C:\users\default\documents\wtfs1yi25-readme.txt
- %HOMEPATH%\downloads\wtfs1yi25-readme.txt
- %HOMEPATH%\favorites\wtfs1yi25-readme.txt
- %HOMEPATH%\favorites\msn websites\wtfs1yi25-readme.txt
- %HOMEPATH%\favorites\microsoft websites\wtfs1yi25-readme.txt
- %HOMEPATH%\favorites\links for united states\wtfs1yi25-readme.txt
- %HOMEPATH%\favorites\links\wtfs1yi25-readme.txt
- C:\users\public\videos\sample videos\wtfs1yi25-readme.txt
- C:\users\public\recorded tv\sample media\wtfs1yi25-readme.txt
- C:\users\public\pictures\sample pictures\wtfs1yi25-readme.txt
- C:\users\public\music\sample music\wtfs1yi25-readme.txt
- %ProgramFiles%\microsoft sql server compact edition\v3.5\desktop\wtfs1yi25-readme.txt
- C:\far2\addons\xlat\russian\wtfs1yi25-readme.txt
- C:\far2\plugins\drawline\wtfs1yi25-readme.txt
- C:\far2\addons\colors\default_highlighting\wtfs1yi25-readme.txt
- C:\far2\addons\colors\custom_highlighting\wtfs1yi25-readme.txt
- %HOMEPATH%\voip\wtfs1yi25-readme.txt
- %HOMEPATH%\videos\wtfs1yi25-readme.txt
- %HOMEPATH%\searches\wtfs1yi25-readme.txt
- %HOMEPATH%\saved games\wtfs1yi25-readme.txt
- %HOMEPATH%\pictures\wtfs1yi25-readme.txt
- %HOMEPATH%\music\wtfs1yi25-readme.txt
- %HOMEPATH%\links\wtfs1yi25-readme.txt
- %ProgramFiles%\microsoft sql server compact edition\v3.5\wtfs1yi25-readme.txt
- C:\far2\pluginsdk\headers.pas\wtfs1yi25-readme.txt
- C:\far2\pluginsdk\headers.c\wtfs1yi25-readme.txt
- C:\users\public\wtfs1yi25-readme.txt
- C:\users\default\wtfs1yi25-readme.txt
- C:\totalcmd\language\wtfs1yi25-readme.txt
- C:\recovery\1195d5a8-f371-11e4-9c00-dd3082671db2\wtfs1yi25-readme.txt
- %ProgramFiles%\microsoft sql server compact edition\wtfs1yi25-readme.txt
- C:\far2\pluginsdk\wtfs1yi25-readme.txt
- C:\far2\plugins\wtfs1yi25-readme.txt
- C:\far2\fexcept\wtfs1yi25-readme.txt
- C:\far2\encyclopedia\wtfs1yi25-readme.txt
- C:\far2\documentation\wtfs1yi25-readme.txt
- C:\far2\addons\wtfs1yi25-readme.txt
- C:\users\wtfs1yi25-readme.txt
- C:\totalcmd\wtfs1yi25-readme.txt
- C:\recovery\wtfs1yi25-readme.txt
- %ProgramFiles(x86)%\wtfs1yi25-readme.txt
- %ProgramFiles%\wtfs1yi25-readme.txt
- <Current directory>\wtfs1yi25-readme.txt
- C:\far2\wtfs1yi25-readme.txt
- C:\far2\addons\colors\wtfs1yi25-readme.txt
- C:\far2\addons\macros\wtfs1yi25-readme.txt
- %HOMEPATH%\wtfs1yi25-readme.txt
- C:\far2\addons\setup\wtfs1yi25-readme.txt
- C:\far2\plugins\tmppanel\wtfs1yi25-readme.txt
- C:\far2\addons\shell\wtfs1yi25-readme.txt
- C:\far2\plugins\proclist\wtfs1yi25-readme.txt
- C:\far2\plugins\network\wtfs1yi25-readme.txt
- C:\far2\plugins\macroview\wtfs1yi25-readme.txt
- C:\far2\plugins\hlfviewer\wtfs1yi25-readme.txt
- C:\far2\plugins\ftp\wtfs1yi25-readme.txt
- C:\far2\plugins\filecase\wtfs1yi25-readme.txt
- C:\far2\plugins\farcmds\wtfs1yi25-readme.txt
- C:\far2\plugins\emenu\wtfs1yi25-readme.txt
- C:\far2\plugins\ftp\lib\wtfs1yi25-readme.txt
- %HOMEPATH%\favorites\windows live\wtfs1yi25-readme.txt
- C:\far2\plugins\compare\wtfs1yi25-readme.txt
- C:\far2\plugins\brackets\wtfs1yi25-readme.txt
- C:\far2\plugins\autowrap\wtfs1yi25-readme.txt
- C:\far2\plugins\arclite\wtfs1yi25-readme.txt
- C:\far2\plugins\align\wtfs1yi25-readme.txt
- C:\far2\encyclopedia\tap\wtfs1yi25-readme.txt
- C:\far2\documentation\rus\wtfs1yi25-readme.txt
- C:\far2\documentation\eng\wtfs1yi25-readme.txt
- C:\far2\addons\xlat\wtfs1yi25-readme.txt
- C:\far2\plugins\editcase\wtfs1yi25-readme.txt
- D:\wtfs1yi25-readme.txt
Modifies user data files (Trojan.Encoder).
Changes user data files extensions (Trojan.Encoder).
Miscellaneous
Creates and executes the following
- '%WINDIR%\syswow64\cmd.exe' /c vssadmin.exe Delete Shadows /All /Quiet & bcdedit /set {default} recoveryenabled No & bcdedit /set {default} bootstatuspolicy ignoreallfailures' (with hidden window)
Executes the following
- '%WINDIR%\syswow64\cmd.exe' /c vssadmin.exe Delete Shadows /All /Quiet & bcdedit /set {default} recoveryenabled No & bcdedit /set {default} bootstatuspolicy ignoreallfailures
- '<SYSTEM32>\vssvc.exe'
