Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'qesum' = '%HOMEPATH%\qesum.exe /X'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'qesum' = '%HOMEPATH%\qesum.exe /O'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'qesum' = '%HOMEPATH%\qesum.exe /z'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'qesum' = '%HOMEPATH%\qesum.exe /j'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'qesum' = '%HOMEPATH%\qesum.exe /B'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'qesum' = '%HOMEPATH%\qesum.exe /Y'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'qesum' = '%HOMEPATH%\qesum.exe /f'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'qesum' = '%HOMEPATH%\qesum.exe /v'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'qesum' = '%HOMEPATH%\qesum.exe /I'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'qesum' = '%HOMEPATH%\qesum.exe /q'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'qesum' = '%HOMEPATH%\qesum.exe /E'
- [<HKLM>\SYSTEM\ControlSet001\Control\Print\Providers\1497169536] 'Name' = '%TEMP%\3.tmp'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'qesum' = '%HOMEPATH%\qesum.exe /P'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'qesum' = '%HOMEPATH%\qesum.exe /H'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'qesum' = '%HOMEPATH%\qesum.exe /d'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'qesum' = '%HOMEPATH%\qesum.exe /c'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'qesum' = '%HOMEPATH%\qesum.exe /a'
Creates the following files on removable media:
- <Drive name for removable media>:\Documents.lnk
- <Drive name for removable media>:\Passwords.lnk
- <Drive name for removable media>:\Pictures.lnk
- <Drive name for removable media>:\Video.lnk
- <Drive name for removable media>:\Music.lnk
- <Drive name for removable media>:\HCM.ico
- <Drive name for removable media>:\autorun.inf
- <Drive name for removable media>:\qesum.exe
- <Drive name for removable media>:\New Folder.lnk
- <Drive name for removable media>:\qesumx.exe
Malicious functions:
To complicate detection of its presence in the operating system,
forces the system hide from view:
- hidden files
Creates and executes the following:
- %TEMP%\qrls.exe (downloaded from the Internet)
- %TEMP%\vlnjwlil.exe (downloaded from the Internet)
- %TEMP%\huwhjcx.exe (downloaded from the Internet)
- %TEMP%\-1998166001 (downloaded from the Internet)
- %TEMP%\bebcklqy.exe (downloaded from the Internet)
- %TEMP%\ojsbbw.exe (downloaded from the Internet)
- %HOMEPATH%\qy.exe
- %HOMEPATH%\qx.exe
- %HOMEPATH%\Q9c15533VCgkLPk5.exe
- %TEMP%\dfojmv.exe (downloaded from the Internet)
- %HOMEPATH%\qesum.exe
- %HOMEPATH%\rsvhost.exe
Executes the following:
- <SYSTEM32>\tasklist.exe
- <SYSTEM32>\svchost.exe
Injects code into
the following system processes:
- %WINDIR%\Explorer.EXE
- <SYSTEM32>\spoolsv.exe
Modifies settings of Windows Internet Explorer:
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\3] '1400' = '00000000'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\3] '1601' = '00000000'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\3] 'currentlevel' = '00000000'
Modifies file system :
Creates the following files:
- %TEMP%\qrls.exe
- %HOMEPATH%\Local Settings\Temporary Internet Files\Content.IE5\KHMHGZ4F\uhhymdqu[1].php
- %HOMEPATH%\Local Settings\Temporary Internet Files\Content.IE5\YPORKZYZ\lyyyzdduh[1].php
- %HOMEPATH%\Local Settings\Temporary Internet Files\Content.IE5\2VAZY7AN\vvvmmddhvl[1].php
- %TEMP%\vlnjwlil.exe
- %TEMP%\bebcklqy.exe
- %TEMP%\-1998166001
- %HOMEPATH%\Local Settings\Temporary Internet Files\Content.IE5\U98D4X8H\kxyyp[1].php
- %HOMEPATH%\Local Settings\Temporary Internet Files\Content.IE5\U98D4X8H\vvvjzar[1].php
- %HOMEPATH%\Local Settings\Temporary Internet Files\Content.IE5\KHMHGZ4F\bosgwxbeff[1].php
- %TEMP%\ojsbbw.exe
- %TEMP%\huwhjcx.exe
- %HOMEPATH%\rsvhost.exe
- %HOMEPATH%\qy.exe
- %HOMEPATH%\Q9c15533VCgkLPk5.exe
- %HOMEPATH%\qx.exe
- %TEMP%\2.tmp
- %TEMP%\dfojmv.exe
- %HOMEPATH%\Local Settings\Temporary Internet Files\Content.IE5\U98D4X8H\wjwwnae[1].php
- %HOMEPATH%\Local Settings\Temporary Internet Files\Content.IE5\KHMHGZ4F\hhlycptx[1].php
- %WINDIR%\Temp\4.tmp
- %HOMEPATH%\qesum.exe
Sets the 'hidden' attribute to the following files:
- <Drive name for removable media>:\qesum.exe
- <Drive name for removable media>:\qesumx.exe
- <Drive name for removable media>:\HCM.ico
- %HOMEPATH%\qesum.exe
- <Drive name for removable media>:\autorun.inf
Deletes the following files:
- %HOMEPATH%\qy.exe
- %HOMEPATH%\Q9c15533VCgkLPk5.exe
- <SYSTEM32>\svchost.exe
- %TEMP%\3.tmp
- <DRIVERS>\etc\hosts
- %WINDIR%\Temp\4.tmp
Network activity:
Connects to:
- 'aa###lic.com':80
TCP:
HTTP GET requests:
- aa###lic.com/bdqqu/vvvjzar.php?ad####################################
- aa###lic.com/bdqqu/bosgwxbeff.php?ad####################################
- aa###lic.com/bdqqu/kxyyp.php?ad##################################################################
- aa###lic.com/bdqqu/lmzdd.php?ad####################################
- aa###lic.com/bdqqu/ivjwneei.php?ad####################################
- aa###lic.com/bdqqu/wjwwnae.php?ad####################################
- aa###lic.com/bdqqu/hhlycptx.php?ad####################################
- aa###lic.com/bdqqu/vvvmmddhvl.php?ad####################################
- aa###lic.com/bdqqu/uhhymdqu.php?ad####################################
- aa###lic.com/bdqqu/lyyyzdduh.php?ad####################################
UDP:
- DNS ASK aa###lic.com
- '<Private IP address>':1036
Miscellaneous:
Searches for the following windows:
- ClassName: 'Indicator' WindowName: ''
