Technical Information
To ensure autorun and distribution
Modifies the following registry keys
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'MSFEEditor' = '"<Full path to file>" e'
Creates the following files on removable media
- <Drive name for removable media>:\000814251_video_01.avi.corona-lock
- <Drive name for removable media>:\correct.avi.corona-lock
- <Drive name for removable media>:\join.avi.corona-lock
- <Drive name for removable media>:\dashborder_96.bmp.corona-lock
- <Drive name for removable media>:\dashborder_120.bmp.corona-lock
- <Drive name for removable media>:\dial.bmp.corona-lock
- <Drive name for removable media>:\toolbar.bmp.corona-lock
- <Drive name for removable media>:\dashborder_144.bmp.corona-lock
- <Drive name for removable media>:\contosoroot.cer.corona-lock
- <Drive name for removable media>:\sdksampleprivdeveloper.cer.corona-lock
- <Drive name for removable media>:\sdksampleunprivdeveloper.cer.corona-lock
- <Drive name for removable media>:\sdkfailsafeemulator.cer.corona-lock
- <Drive name for removable media>:\testee.cer.corona-lock
- <Drive name for removable media>:\pmd.cer.corona-lock
- <Drive name for removable media>:\uep_form_786_bulletin_1726i602.doc.corona-lock
Malicious functions
To complicate detection of its presence in the operating system,
deletes volume shadow copies.
Modifies file system
Creates the following files
- %APPDATA%\key.file
- %HOMEPATH%\desktop\readme_lock.txt
- D:\install.log.corona-lock
- C:\far2\changelog.corona-lock
- C:\totalcmd\default.bar.corona-lock
- C:\totalcmd\descript.ion.corona-lock
- C:\far2\changelog_eng.corona-lock
- C:\totalcmd\history.txt.corona-lock
Deletes the following files
- <Drive name for removable media>:\uep_form_786_bulletin_1726i602.doc.corona-lock
Miscellaneous
Executes the following
- '%WINDIR%\syswow64\vssadmin.exe' Resize ShadowStorage /for=c: /on=c: /maxsize=401MB
- '<SYSTEM32>\vssvc.exe'
- '%WINDIR%\syswow64\vssadmin.exe' Resize ShadowStorage /for=c: /on=c: /maxsize=unbounded
- '%WINDIR%\syswow64\vssadmin.exe' Resize ShadowStorage /for=d: /on=d: /maxsize=401MB
- '%WINDIR%\syswow64\vssadmin.exe' Resize ShadowStorage /for=d: /on=d: /maxsize=unbounded
- '%WINDIR%\syswow64\vssadmin.exe' Resize ShadowStorage /for=e: /on=e: /maxsize=401MB
- '%WINDIR%\syswow64\vssadmin.exe' Resize ShadowStorage /for=e: /on=e: /maxsize=unbounded
- '%WINDIR%\syswow64\vssadmin.exe' Resize ShadowStorage /for=f: /on=f: /maxsize=401MB
- '%WINDIR%\syswow64\vssadmin.exe' Resize ShadowStorage /for=f: /on=f: /maxsize=unbounded
- '%WINDIR%\syswow64\vssadmin.exe' Resize ShadowStorage /for=g: /on=g: /maxsize=401MB
- '%WINDIR%\syswow64\vssadmin.exe' Resize ShadowStorage /for=g: /on=g: /maxsize=unbounded
- '%WINDIR%\syswow64\vssadmin.exe' Resize ShadowStorage /for=h: /on=h: /maxsize=401MB
- '%WINDIR%\syswow64\vssadmin.exe' Resize ShadowStorage /for=h: /on=h: /maxsize=unbounded
- '%WINDIR%\syswow64\wbem\wmic.exe' SHADOWCOPY /nointeractive
