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Win32.HLLW.Autoruner1.54220
Added to the Dr.Web virus database:
2013-08-20
Virus description added:
2014-07-16
Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'Microsoft_Services' = '%APPDATA%\Roaming\firefox.exe'
Malicious functions:
Creates and executes the following:
'%PROGRAM_FILES%\FireFox\Pershelpr.exe'
'%HOMEPATH%\GLSZB\JYYZQ.exe' %HOMEPATH%\GLSZB\ITIEW
'%HOMEPATH%\GLSZB\JYYZQ.exe' %HOMEPATH%\GLSZB\ZFMXN
Executes the following:
'<SYSTEM32>\conhost.exe' /pid=1228
'<SYSTEM32>\taskkill.exe'
'<SYSTEM32>\rundll32.exe' dfdts.dll,DfdGetDefaultPolicyAndSMART
'<SYSTEM32>\taskkill.exe' /pid=1868
'<SYSTEM32>\conhost.exe'
'<SYSTEM32>\conhost.exe' /pid=4088
'<SYSTEM32>\taskkill.exe' /F /IM explorer.exe
'<SYSTEM32>\WScript.exe' "%HOMEPATH%\GLSZB\YDBSY.vbs"
'<SYSTEM32>\taskkill.exe' /F /IM iexplore.exe
'<SYSTEM32>\attrib.exe' +s +h%APPDATA%\Roaming\firefox.exe
'<SYSTEM32>\cmd.exe' /c %APPDATA%\Roaming\till.bat
Modifies file system :
Creates the following files:
%APPDATA%\Roaming\Mozilla\Firefox\Profiles\zp7tnb55.default\sessionstore.bak
%TEMP%\nshEB58.tmp\System.dll
%APPDATA%\Roaming\till.bat
%APPDATA%\Roaming\Mozilla\Firefox\Profiles\zp7tnb55.default\prefs-1.js
%TEMP%\nshEB58.tmp\ShellLink.dll
%APPDATA%\Roaming\Mozilla\Firefox\Profiles\zp7tnb55.default\downloads.sqlite-journal
%APPDATA%\Roaming\Mozilla\Firefox\Profiles\zp7tnb55.default\downloads.sqlite
<LS_APPDATA>\Mozilla\Firefox\Profiles\zp7tnb55.default\urlclassifier3.sqlite-journal
%APPDATA%\Roaming\Mozilla\Firefox\Profiles\zp7tnb55.default\places.sqlite-wal
%APPDATA%\Roaming\firefox.exe
%HOMEPATH%\GLSZB\YMQGIX
%HOMEPATH%\GLSZB\ZFMXN
%HOMEPATH%\GLSZB\FIKFO
%HOMEPATH%\GLSZB\LXRMU
%HOMEPATH%\GLSZB\YDBSY.vbs
%PROGRAM_FILES%\FireFox\Pershelpr.exe
%PROGRAM_FILES%\FireFox\Set.ini
%HOMEPATH%\GLSZB\JYYZQ.exe
%HOMEPATH%\GLSZB\ITIEW
Sets the 'hidden' attribute to the following files:
Deletes the following files:
%TEMP%\nshEB58.tmp\System.dll
<LS_APPDATA>\Mozilla\Firefox\Profiles\zp7tnb55.default\urlclassifier3.sqlite-journal
%APPDATA%\Roaming\Mozilla\Firefox\Profiles\zp7tnb55.default\downloads.sqlite-journal
%HOMEPATH%\GLSZB\ITIEW
%HOMEPATH%\GLSZB\JYYZQ.exe
%TEMP%\nshEB58.tmp\ShellLink.dll
Network activity:
Connects to:
'fx####s.mozilla.com':80
'localhost':49160
'localhost':49158
TCP:
HTTP GET requests:
fx####s.mozilla.com/en-US/firefox/headlines.xml
UDP:
DNS ASK fx####s.mozilla.com
Miscellaneous:
Searches for the following windows:
ClassName: '(null)' WindowName: 'Persistance'
ClassName: '(null)' WindowName: '(null)'
ClassName: 'Shell_TrayWnd' WindowName: '(null)'
ClassName: 'FirefoxMessageWindow' WindowName: '(null)'
ClassName: '(null)' WindowName: 'dsfhgsidufsdiufh'
ClassName: 'Shell_traywnd' WindowName: ''
ClassName: 'EDIT' WindowName: '(null)'
ClassName: 'Indicator' WindowName: '(null)'
ClassName: 'OleMainThreadWndClass' WindowName: '(null)'
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