Gen.Variant.Graftor.131194_0f22b5d8f7

Dynamic Analysis

Payload

No specific payload has been found.

Process activity

The Trojan creates the following process(es):

%original file name%.exe:264

The Trojan injects its code into the following process(es):No processes have been created.

File activity

The process %original file name%.exe:264 makes changes in the file system.

The Trojan creates and/or writes to the following file(s):

%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\desktop.ini (67 bytes)
%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\OEBBOQ59\icons[1].gif (7856 bytes)
%System%\їс.sys (70144 bytes)
%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\XWHK1GPI\xui[1].js (9118 bytes)
%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\desktop.ini (67 bytes)
%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\R5BRBDUV\qlogin[1].htm (9087 bytes)
%Documents and Settings%\%current user%\Local Settings\History\History.IE5\MSHist012014021820140219\index.dat (32768 bytes)
%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\XWHK1GPI\desktop.ini (67 bytes)
%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\R5BRBDUV\desktop.ini (67 bytes)
%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\X7VALIDZ\go[1].htm (846 bytes)
%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\X7VALIDZ\desktop.ini (67 bytes)
%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\OEBBOQ59\desktop.ini (67 bytes)

The Trojan deletes the following file(s):

%Documents and Settings%\%current user%\Local Settings\History\History.IE5\MSHist012013093020131001 (0 bytes)
%Documents and Settings%\%current user%\Local Settings\History\History.IE5\MSHist012013093020131001\index.dat (0 bytes)
%System%\їс.sys (0 bytes)

Registry activity

The process %original file name%.exe:264 makes changes in the system registry.

The Trojan creates and/or sets the following values in system registry:

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths]
"Directory" = "%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths\path4]
"CacheLimit" = "65324"
"CachePath" = "%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\Cache4"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths\path2]
"CacheLimit" = "65324"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"AppData" = "%Documents and Settings%\%current user%\Application Data"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Extensible Cache\MSHist012014021820140219]
"CacheLimit" = "8192"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"Cookies" = "%Documents and Settings%\%current user%\Cookies"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths\path2]
"CachePath" = "%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\Cache2"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2\{91167d45-103d-11db-8c91-806d6172696f}]
"BaseClass" = "Drive"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Extensible Cache\MSHist012014021820140219]
"CacheOptions" = "11"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"Common AppData" = "%Documents and Settings%\All Users\Application Data"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2\{91167d42-103d-11db-8c91-806d6172696f}]
"BaseClass" = "Drive"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"Cache" = "%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files"

[HKCR\TypeLib\{1EA4DBF0-3C3B-11CF-810C-00AA00389B71}\1.1\0\win32]
"(Default)" = "%System%\oleacc.dll"

[HKLM\System\CurrentControlSet\Hardware Profiles\0001\Software\Microsoft\windows\CurrentVersion\Internet Settings]
"ProxyEnable" = "0"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths\path1]
"CacheLimit" = "65324"

[HKCR\Interface\{618736E0-3C3D-11CF-810C-00AA00389B71}\TypeLib]
"Version" = "1.1"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Extensible Cache\MSHist012014021820140219]
"CacheRepair" = "0"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections]
"SavedLegacySettings" = "3C 00 00 00 2F 00 00 00 01 00 00 00 00 00 00 00"

[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "F0 BA F4 CF A0 6E 2F 92 F8 D0 30 9B 01 3C 48 8D"

[HKCU\Software\Microsoft\Internet Explorer\Main]
"Start Page" = "www.2345.com/?k744606640"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Extensible Cache\MSHist012014021820140219]
"CachePrefix" = ":2014021820140219:"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths\path1]
"CachePath" = "%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\Cache1"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths\path3]
"CacheLimit" = "65324"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings]
"MigrateProxy" = "1"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"History" = "%Documents and Settings%\%current user%\Local Settings\History"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2\{d8c0d8da-77bd-11e0-bb02-000c293bc0fd}]
"BaseClass" = "Drive"

[HKCR\Interface\{618736E0-3C3D-11CF-810C-00AA00389B71}\TypeLib]
"(Default)" = "{1EA4DBF0-3C3B-11CF-810C-00AA00389B71}"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths\path3]
"CachePath" = "%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\Cache3"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths]
"Paths" = "4"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Extensible Cache\MSHist012014021820140219]
"CachePath" = "%USERPROFILE%\Local Settings\History\History.IE5\MSHist012014021820140219\"

[HKLM\SOFTWARE\Microsoft\InternetExplorer\Main]
"Start Page" = "www.2345.com/?k744606640C"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2\{ebcf8d94-66db-11de-b228-806d6172696f}]
"BaseClass" = "Drive"

The Trojan modifies IE settings for security zones to map all local web-nodes with no dots which do not refer to any zone to the Intranet Zone:

[HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap]
"UNCAsIntranet" = "1"

The Trojan modifies IE settings for security zones to map all web-nodes that bypassing the proxy to the Intranet Zone:

"ProxyBypass" = "1"

Proxy settings are disabled:

[HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings]
"ProxyEnable" = "0"

The Trojan modifies IE settings for security zones to map all urls to the Intranet Zone:

[HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap]
"IntranetName" = "1"

The Trojan deletes the following registry key(s):

[HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Extensible Cache\MSHist012013093020131001]

The Trojan deletes the following value(s) in system registry:

[HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings]
"AutoConfigURL"
"ProxyServer"
"ProxyOverride"

Network activity (URLs)

URL	IP
hxxp://img.users.51.la/4354769.asp?314354300307QQ310272263311324261321351326244304243277351	117.21.191.223
hxxp://ui.ptlogin2.qq.com/cgi-bin/qlogin?domain=qq.com&lang=2052&qtarget=0&jumpname=&ptcss=&param=u1%3Dhttp%253A%252F%252Fwww.qq.com%252Fqq2012%252FloginSuccess.htm&css=&mibao_css=&low_login=0
hxxp://a1165.b.akamai.net/ptlogin/ver/10067/js/xui.js?v=10007
hxxp://a1165.b.akamai.net/ptlogin/v4/style/0/images/icons.gif
web.51.la	222.187.223.75
imgcache.qq.com	23.3.90.91
xui.ptlogin2.qq.com	112.90.83.106

HOSTS file anomalies

No changes have been detected.

Rootkit activity

The Trojan installs the following kernel-mode hooks:

ZwQuerySystemInformation
ZwReadVirtualMemory
ZwWriteVirtualMemory

Propagation

Removals

Remove it with Ad-Aware

1. Click (here) to download and install Ad-Aware Free Antivirus.
2. Update the definition files.
3. Run a full scan of your computer.

Manual removal*

1. Scan a system with an anti-rootkit tool.
   
2. Terminate malicious process(es) (How to End a Process With the Task Manager):

   %original file name%.exe:264

3. Delete the original Trojan file.
   
4. Delete or disinfect the following files created/modified by the Trojan:

   %Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\desktop.ini (67 bytes)
   %Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\OEBBOQ59\icons[1].gif (7856 bytes)
   %System%\їс.sys (70144 bytes)
   %Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\XWHK1GPI\xui[1].js (9118 bytes)
   %Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\desktop.ini (67 bytes)
   %Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\R5BRBDUV\qlogin[1].htm (9087 bytes)
   %Documents and Settings%\%current user%\Local Settings\History\History.IE5\MSHist012014021820140219\index.dat (32768 bytes)
   %Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\XWHK1GPI\desktop.ini (67 bytes)
   %Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\R5BRBDUV\desktop.ini (67 bytes)
   %Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\X7VALIDZ\go[1].htm (846 bytes)
   %Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\X7VALIDZ\desktop.ini (67 bytes)
   %Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\OEBBOQ59\desktop.ini (67 bytes)

5. Clean the Temporary Internet Files folder, which may contain infected files (How to clean Temporary Internet Files folder).
   
6. Reboot the computer.
   

*Manual removal may cause unexpected system behaviour and should be performed at your own risk.

Static Analysis

VersionInfo

No information is available.

No information is available.

PE Sections

Name	Virtual Address	Virtual Size	Raw Size	Entropy	Section MD5
.text	4096	672850	675840	4.52141	cf91b57f1f607e58aa85acf14f083674
.rdata	679936	403468	405504	5.05839	f5760ce8295bf07d382672787842688f
.data	1085440	263211	81920	3.59047	db8bc9ffe4fc17e46b31c382e443d720
.rsrc	1351680	29624	32768	3.92791	9b92f5327021ad4ae4e1bbe987102c7c

Network Activity

Dropped from:

Downloaded by:

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