Technical Information
To ensure autorun and distribution
Modifies the following registry keys
- [HKLM\Software\Classes\BlackBit\shell\open\command] '' = '%ALLUSERSPROFILE%\ybrq21p2.exe "%l" '
Creates or modifies the following files
- %APPDATA%\microsoft\windows\start menu\programs\startup\winlogon.exe
- %APPDATA%\microsoft\windows\start menu\programs\startup\wvtymcow.bat
- <SYSTEM32>\tasks\blackbit
Sets the following service settings
- [HKLM\System\CurrentControlSet\Services\IKEEXT] 'Start' = '00000002'
Creates the following files on removable media
- <Drive name for removable media>:\cpriv.blackbit
- <Drive name for removable media>:\restore-my-files.txt
- <Drive name for removable media>:\split.avi
Malicious functions
To complicate detection of its presence in the operating system,
blocks execution of the following system utilities:
- Windows Defender
deletes volume shadow copies.
Executes the following
- '%WINDIR%\syswow64\netsh.exe' advfirewall set currentprofile state off
- '%WINDIR%\syswow64\netsh.exe' firewall set opmode mode=disable
Reads files which store third party applications passwords
- %HOMEPATH%\desktop\advice_process.htm
- %HOMEPATH%\desktop\contosoroot.cer
- %HOMEPATH%\desktop\contosoroot_1.cer
- %HOMEPATH%\desktop\contoso_1.cer
- %HOMEPATH%\desktop\correct.avi
- %HOMEPATH%\desktop\dashborder_192.bmp
- %HOMEPATH%\desktop\hadac_newsletter_july_2010_final.docx
- %HOMEPATH%\desktop\hanni_umami_chapter.doc
- %HOMEPATH%\desktop\nwfieldnotes1966.docx
- %HOMEPATH%\desktop\ovp25012015.doc
- %HOMEPATH%\desktop\sdkfailsafeemulator.cer
- %HOMEPATH%\desktop\sdszfo.docx
- %HOMEPATH%\desktop\tileimage.bmp
- %HOMEPATH%\desktop\toolbar.bmp
- %HOMEPATH%\desktop\uep_form_786_bulletin_1726i602.doc
Modifies file system
Creates the following files
- %APPDATA%\winlogon.exe
- %CommonProgramFiles%\microsoft shared\ink\es-es\restore-my-files.txt
- %CommonProgramFiles%\microsoft shared\ink\et-ee\restore-my-files.txt
- %CommonProgramFiles%\microsoft shared\ink\fi-fi\restore-my-files.txt
- %CommonProgramFiles%\microsoft shared\ink\fr-fr\restore-my-files.txt
- %CommonProgramFiles%\microsoft shared\ink\fsdefinitions\auxpad\restore-my-files.txt
- %CommonProgramFiles%\microsoft shared\ink\fsdefinitions\restore-my-files.txt
- %CommonProgramFiles%\microsoft shared\ink\fsdefinitions\main\restore-my-files.txt
- %CommonProgramFiles%\microsoft shared\grphflt\restore-my-files.txt
- %CommonProgramFiles%\microsoft shared\ink\fsdefinitions\numbers\restore-my-files.txt
- %CommonProgramFiles%\microsoft shared\ink\fsdefinitions\oskmenu\restore-my-files.txt
- %CommonProgramFiles%\microsoft shared\ink\fsdefinitions\osknumpad\restore-my-files.txt
- %CommonProgramFiles%\microsoft shared\ink\fsdefinitions\oskpred\restore-my-files.txt
- %CommonProgramFiles%\microsoft shared\ink\fsdefinitions\symbols\restore-my-files.txt
- %CommonProgramFiles%\microsoft shared\ink\fsdefinitions\web\restore-my-files.txt
- %CommonProgramFiles%\microsoft shared\ink\en-us\restore-my-files.txt
- %CommonProgramFiles%\microsoft shared\ink\el-gr\restore-my-files.txt
- %CommonProgramFiles%\microsoft shared\ink\de-de\restore-my-files.txt
- %CommonProgramFiles%\microsoft shared\ink\da-dk\restore-my-files.txt
- %CommonProgramFiles%\microsoft shared\ink\cs-cz\restore-my-files.txt
- %CommonProgramFiles%\microsoft shared\ink\bg-bg\restore-my-files.txt
- %CommonProgramFiles%\microsoft shared\ink\ar-sa\restore-my-files.txt
- %CommonProgramFiles%\microsoft shared\ink\restore-my-files.txt
- %CommonProgramFiles%\microsoft shared\help\restore-my-files.txt
- %CommonProgramFiles%\microsoft shared\ink\fsdefinitions\keypad\restore-my-files.txt
- %CommonProgramFiles%\microsoft shared\filters\restore-my-files.txt
- %CommonProgramFiles%\microsoft shared\euro\restore-my-files.txt
- %CommonProgramFiles%\microsoft shared\equation\restore-my-files.txt
- %CommonProgramFiles%\microsoft shared\equation\1033\restore-my-files.txt
- %CommonProgramFiles%\microsoft shared\dw\restore-my-files.txt
- %CommonProgramFiles%\designer\restore-my-files.txt
- C:\msocache\all users\{90140000-0117-0409-1000-0000000ff1ce}-c\restore-my-files.txt
- %CommonProgramFiles%\microsoft shared\ink\he-il\restore-my-files.txt
- %CommonProgramFiles%\microsoft shared\ink\hr-hr\restore-my-files.txt
- %CommonProgramFiles%\microsoft shared\ink\hu-hu\restore-my-files.txt
- %CommonProgramFiles%\microsoft shared\ink\it-it\restore-my-files.txt
- %CommonProgramFiles%\microsoft shared\ink\zh-cn\restore-my-files.txt
- %CommonProgramFiles%\microsoft shared\ink\zh-tw\restore-my-files.txt
- %CommonProgramFiles%\microsoft shared\msclientdatamgr\restore-my-files.txt
- %CommonProgramFiles%\microsoft shared\msinfo\en-us\restore-my-files.txt
- %CommonProgramFiles%\microsoft shared\msinfo\restore-my-files.txt
- %CommonProgramFiles%\microsoft shared\office14\1033\restore-my-files.txt
- %CommonProgramFiles%\microsoft shared\office14\cultures\restore-my-files.txt
- C:\msocache\all users\{90140000-0117-0409-1000-0000000ff1ce}-c\access.en-us\restore-my-files.txt
- %CommonProgramFiles%\microsoft shared\office14\office setup controller\access.en-us\restore-my-files.txt
- %CommonProgramFiles%\microsoft shared\office14\office setup controller\excel.en-us\restore-my-files.txt
- %CommonProgramFiles%\microsoft shared\office14\office setup controller\groove.en-us\restore-my-files.txt
- %CommonProgramFiles%\microsoft shared\office14\office setup controller\infopath.en-us\restore-my-files.txt
- %CommonProgramFiles%\microsoft shared\office14\office setup controller\restore-my-files.txt
- %CommonProgramFiles%\microsoft shared\office14\office setup controller\office.en-us\restore-my-files.txt
- %CommonProgramFiles%\microsoft shared\ink\uk-ua\restore-my-files.txt
- %CommonProgramFiles%\microsoft shared\ink\pt-br\restore-my-files.txt
- %CommonProgramFiles%\microsoft shared\ink\tr-tr\restore-my-files.txt
- %CommonProgramFiles%\microsoft shared\ink\pl-pl\restore-my-files.txt
- %CommonProgramFiles%\microsoft shared\ink\ja-jp\restore-my-files.txt
- %CommonProgramFiles%\microsoft shared\ink\ko-kr\restore-my-files.txt
- %CommonProgramFiles%\microsoft shared\ink\lt-lt\restore-my-files.txt
- %CommonProgramFiles%\microsoft shared\ink\lv-lv\restore-my-files.txt
- %CommonProgramFiles%\microsoft shared\ink\nb-no\restore-my-files.txt
- %CommonProgramFiles%\microsoft shared\ink\nl-nl\restore-my-files.txt
- %CommonProgramFiles%\microsoft shared\office14\office setup controller\office32.en-us\restore-my-files.txt
- %CommonProgramFiles%\microsoft shared\ink\sv-se\restore-my-files.txt
- %CommonProgramFiles%\microsoft shared\ink\pt-pt\restore-my-files.txt
- %CommonProgramFiles%\microsoft shared\ink\ro-ro\restore-my-files.txt
- %CommonProgramFiles%\microsoft shared\ink\ru-ru\restore-my-files.txt
- %CommonProgramFiles%\microsoft shared\ink\sk-sk\restore-my-files.txt
- %CommonProgramFiles%\microsoft shared\ink\sl-si\restore-my-files.txt
- %CommonProgramFiles%\microsoft shared\ink\sr-latn-cs\restore-my-files.txt
- %CommonProgramFiles%\microsoft shared\ink\th-th\restore-my-files.txt
- %CommonProgramFiles%\microsoft shared\office14\restore-my-files.txt
- C:\msocache\all users\{90140000-0115-0409-1000-0000000ff1ce}-c\restore-my-files.txt
- C:\msocache\all users\{90140000-001b-0409-1000-0000000ff1ce}-c\restore-my-files.txt
- %HOMEPATH%\pictures\cpriv.blackbit
- %HOMEPATH%\videos\cpriv.blackbit
- %HOMEPATH%\music\cpriv.blackbit
- %ALLUSERSPROFILE%\cpriv.blackbit
- C:\restore-my-files.txt
- C:\users\default\restore-my-files.txt
- C:\users\public\documents\restore-my-files.txt
- %ALLUSERSPROFILE%\csc1b5.tmp
- C:\users\public\downloads\restore-my-files.txt
- C:\users\public\libraries\restore-my-files.txt
- C:\users\public\music\restore-my-files.txt
- C:\users\public\music\sample music\restore-my-files.txt
- C:\users\public\pictures\restore-my-files.txt
- C:\users\public\pictures\sample pictures\restore-my-files.txt
- %HOMEPATH%\documents\cpriv.blackbit
- %HOMEPATH%\desktop\cpriv.blackbit
- %APPDATA%\microsoft\windows\recent\cpriv.blackbit
- %HOMEPATH%\favorites\cpriv.blackbit
- D:\cpriv.blackbit
- C:\cpriv.blackbit
- %ALLUSERSPROFILE%\info.blackbit
- %ALLUSERSPROFILE%\ybrq21p2.exe
- %TEMP%\res1c5.tmp
- C:\users\public\desktop\restore-my-files.txt
- %TEMP%\odneqw5s.out
- %TEMP%\odneqw5s.cmdline
- %TEMP%\odneqw5s.0.cs
- %TEMP%\ouctwrzi.ico
- %WINDIR%\winlogon.exe
- %ALLUSERSPROFILE%\microsoft\windows\start menu\programs\startup\winlogon.exe
- %ALLUSERSPROFILE%\winlogon.exe
- C:\users\public\recorded tv\restore-my-files.txt
- C:\users\public\recorded tv\sample media\restore-my-files.txt
- C:\users\public\videos\restore-my-files.txt
- C:\users\public\videos\sample videos\restore-my-files.txt
- <Current directory>\restore-my-files.txt
- C:\msocache\all users\{90140000-0011-0000-1000-0000000ff1ce}-c\restore-my-files.txt
- C:\msocache\all users\{90140000-0016-0409-1000-0000000ff1ce}-c\restore-my-files.txt
- C:\msocache\all users\{90140000-0018-0409-1000-0000000ff1ce}-c\restore-my-files.txt
- C:\msocache\all users\{90140000-0019-0409-1000-0000000ff1ce}-c\restore-my-files.txt
- C:\msocache\all users\{90140000-001a-0409-1000-0000000ff1ce}-c\restore-my-files.txt
- C:\msocache\all users\{90140000-002c-0409-1000-0000000ff1ce}-c\proof.en\restore-my-files.txt
- C:\msocache\all users\{90140000-0115-0409-1000-0000000ff1ce}-c\1033\restore-my-files.txt
- C:\msocache\all users\{90140000-002c-0409-1000-0000000ff1ce}-c\proof.es\restore-my-files.txt
- C:\msocache\all users\{90140000-002c-0409-1000-0000000ff1ce}-c\proof.fr\restore-my-files.txt
- C:\msocache\all users\{90140000-002c-0409-1000-0000000ff1ce}-c\restore-my-files.txt
- C:\msocache\all users\{90140000-0043-0409-1000-0000000ff1ce}-c\restore-my-files.txt
- C:\msocache\all users\{90140000-0044-0409-1000-0000000ff1ce}-c\restore-my-files.txt
- C:\msocache\all users\{90140000-00a1-0409-1000-0000000ff1ce}-c\restore-my-files.txt
- %HOMEPATH%\restore-my-files.txt
- %HOMEPATH%\favorites\links for united states\restore-my-files.txt
- %HOMEPATH%\videos\restore-my-files.txt
- %HOMEPATH%\favorites\links\restore-my-files.txt
- C:\users\public\restore-my-files.txt
- %HOMEPATH%\contacts\restore-my-files.txt
- %HOMEPATH%\desktop\restore-my-files.txt
- %HOMEPATH%\documents\restore-my-files.txt
- %HOMEPATH%\downloads\restore-my-files.txt
- %HOMEPATH%\favorites\restore-my-files.txt
- C:\msocache\all users\{90140000-00ba-0409-1000-0000000ff1ce}-c\restore-my-files.txt
- %HOMEPATH%\saved games\restore-my-files.txt
- %HOMEPATH%\favorites\microsoft websites\restore-my-files.txt
- %HOMEPATH%\favorites\msn websites\restore-my-files.txt
- %HOMEPATH%\favorites\windows live\restore-my-files.txt
- %HOMEPATH%\links\restore-my-files.txt
- %HOMEPATH%\music\restore-my-files.txt
- %HOMEPATH%\pictures\restore-my-files.txt
- %HOMEPATH%\searches\restore-my-files.txt
- %CommonProgramFiles%\microsoft shared\office14\office setup controller\office32.ww\restore-my-files.txt
Sets the 'hidden' attribute to the following files
- %APPDATA%\winlogon.exe
- %ALLUSERSPROFILE%\winlogon.exe
- %WINDIR%\winlogon.exe
- %ALLUSERSPROFILE%\ybrq21p2.exe
Deletes the following files
- %TEMP%\res1c5.tmp
- %ALLUSERSPROFILE%\csc1b5.tmp
- %TEMP%\odneqw5s.0.cs
- %TEMP%\odneqw5s.out
- %TEMP%\odneqw5s.cmdline
Modifies the following files
- <Drive name for removable media>:\split.avi
- C:\users\public\pictures\sample pictures\hydrangeas.jpg
- C:\users\public\pictures\sample pictures\desktop.ini
- C:\users\public\pictures\sample pictures\desert.jpg
- C:\users\public\pictures\sample pictures\chrysanthemum.jpg
- C:\users\public\pictures\desktop.ini
- 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\music\sample music\desktop.ini
- C:\users\public\music\desktop.ini
- C:\users\public\libraries\recordedtv.library-ms
- C:\users\public\libraries\desktop.ini
- C:\users\public\downloads\desktop.ini
- C:\users\public\documents\desktop.ini
- 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\desktop.ini
- C:\users\public\desktop\acrobat reader dc.lnk
- C:\users\default\ntuser.dat{016888bd-6c6f-11de-8d1d-001e0bcde3ec}.tmcontainer00000000000000000002.regtrans-ms
- C:\users\default\ntuser.dat{016888bd-6c6f-11de-8d1d-001e0bcde3ec}.tmcontainer00000000000000000001.regtrans-ms
- C:\users\default\ntuser.dat{016888bd-6c6f-11de-8d1d-001e0bcde3ec}.tm.blf
- C:\users\default\ntuser.dat.log2
- C:\users\default\ntuser.dat.log1
- C:\users\default\ntuser.dat.log
- C:\users\default\ntuser.dat
- C:\users\public\pictures\sample pictures\jellyfish.jpg
- C:\users\public\pictures\sample pictures\koala.jpg
Modifies multiple files.
Modifies user data files (Trojan.Encoder).
Network activity
Connects to
- '<LOCALNET>.5.1':445
- '<LOCALNET>.5.1':139
- '62.##3.61.53':80
UDP
- 'localhost':49937
- 'localhost':63361
Miscellaneous
Executes the following
- '%WINDIR%\syswow64\cmd.exe' /C schtasks /CREATE /SC ONLOGON /TN BlackBit /TR %APPDATA%\winlogon.exe /RU SYSTEM /RL HIGHEST /F
- '%WINDIR%\syswow64\cmd.exe' /C netsh advfirewall set currentprofile state off
- '%WINDIR%\syswow64\cmd.exe' /C bcdedit /set {default} recoveryenabled no
- '%WINDIR%\syswow64\cmd.exe' /C bcdedit /set {default} bootstatuspolicy ignoreallfailures
- '%WINDIR%\syswow64\cmd.exe' /C wbadmin delete catalog -quiet
- '%WINDIR%\syswow64\cmd.exe' /C vssadmin delete shadows /all /quiet
- '%WINDIR%\syswow64\cmd.exe' /C netsh firewall set opmode mode=disable
- '%WINDIR%\syswow64\cmd.exe' /C wmic shadowcopy delete
- '%WINDIR%\microsoft.net\framework\v4.0.30319\cvtres.exe' /NOLOGO /READONLY /MACHINE:IX86 "/OUT:%TEMP%\RES1C5.tmp" "%ALLUSERSPROFILE%\CSC1B5.tmp"
- '%WINDIR%\microsoft.net\framework\v4.0.30319\csc.exe' /noconfig /fullpaths @"%TEMP%\odneqw5s.cmdline"
- '%WINDIR%\syswow64\schtasks.exe' /CREATE /SC ONLOGON /TN BlackBit /TR %APPDATA%\winlogon.exe /RU SYSTEM /RL HIGHEST /F
- '%WINDIR%\syswow64\cmd.exe' /C wbadmin DELETE SYSTEMSTATEBACKUP
- '%WINDIR%\syswow64\cmd.exe' /C schtasks /CREATE /SC ONLOGON /TN BlackBit /TR %APPDATA%\winlogon.exe /RU SYSTEM /RL HIGHEST /F' (with hidden window)
- '%WINDIR%\syswow64\cmd.exe' /C netsh advfirewall set currentprofile state off' (with hidden window)
- '%WINDIR%\syswow64\cmd.exe' /C vssadmin delete shadows /all /quiet' (with hidden window)
- '%WINDIR%\microsoft.net\framework\v4.0.30319\cvtres.exe' /NOLOGO /READONLY /MACHINE:IX86 "/OUT:%TEMP%\RES1C5.tmp" "%ALLUSERSPROFILE%\CSC1B5.tmp"' (with hidden window)
- '%WINDIR%\syswow64\cmd.exe' /C wbadmin DELETE SYSTEMSTATEBACKUP' (with hidden window)
- '%WINDIR%\syswow64\cmd.exe' /C wmic shadowcopy delete' (with hidden window)
- '%WINDIR%\microsoft.net\framework\v4.0.30319\csc.exe' /noconfig /fullpaths @"%TEMP%\odneqw5s.cmdline"' (with hidden window)
- '%WINDIR%\syswow64\cmd.exe' /C wbadmin delete catalog -quiet' (with hidden window)
- '%WINDIR%\syswow64\cmd.exe' /C bcdedit /set {default} bootstatuspolicy ignoreallfailures' (with hidden window)
- '%WINDIR%\syswow64\cmd.exe' /C bcdedit /set {default} recoveryenabled no' (with hidden window)
- '%WINDIR%\syswow64\cmd.exe' /C netsh firewall set opmode mode=disable' (with hidden window)
