HEUR:Trojan.Win32.Generic (Kaspersky), Gen:Variant.Kazy.7590 (B) (Emsisoft), Gen:Variant.Kazy.7590 (AdAware), Trojan-PSW.Win32.Zbot.6.FD, GenericInjector.YR, BackdoorCaphaw_QKKBAL.YR (Lavasoft MAS)Behaviour: Trojan-PSW, Trojan, Backdoor
The description has been automatically generated by Lavasoft Malware Analysis System and it may contain incomplete or inaccurate information.
Summary
MD5: 22e36d05f3a81dc50397f777cf022eb0
SHA1: c3c5472b3b42401bb2cc2b22bc282d1a5183a842
SHA256: 78e832e16dc1bd8a84f6fc29f8d31c40380315bff9c28532025ee9183d850954
SSDeep: 3072:opLOyy2RTJkpalzbEM7u6tDmOUtAlZvOE2C wzEUmJIkSoHE:eOGK4Bbt6aqOUtA/O5
Size: 154624 bytes
File type: EXE
Platform: WIN32
Entropy: Packed
PEID: UPolyXv05_v6
Company: Install Manager
Created at: 2007-09-07 21:51:46
Analyzed on: WindowsXP SP3 32-bit
Summary: Trojan-PSW. Trojan program intended for stealing users passwords.
Dynamic Analysis
Payload
No specific payload has been found.
Process activity
The Trojan creates the following process(es):
%original file name%.exe:524
kyygn.exe:1068
The Trojan injects its code into the following process(es):
Explorer.EXE:1684
Mutexes
The following mutexes were created/opened:No objects were found.
File activity
The process %original file name%.exe:524 makes changes in the file system.
The Trojan creates and/or writes to the following file(s):
%Documents and Settings%\%current user%\Application Data\Qaus\kyygn.exe (154 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\tmp4254f07e.bat (177 bytes)
Registry activity
The process %original file name%.exe:524 makes changes in the system registry.
The Trojan creates and/or sets the following values in system registry:
[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "63 CA F6 EE F1 FE 15 64 8B 6A 52 D5 B4 AA DA AF"
[HKCU\Software\Microsoft\Lysi]
"Ydcivizue" = "FA 9F B6 C6 A5 48 D2 5E B8 ED 87 B8 D6 C9 D5 3E"
[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"AppData" = "%Documents and Settings%\%current user%\Application Data"
The process kyygn.exe:1068 makes changes in the system registry.
The Trojan creates and/or sets the following values in system registry:
[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "50 20 2E 1E F5 DD E7 1A 48 04 DF 3D D8 F1 84 87"
[HKCU\Software\Microsoft\Lysi]
"Ydcivizue" = "FA 9F B6 C6 A5 48 D2 5E B8 ED 87 B8 D6 C9 D5 3E"
[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"AppData" = "%Documents and Settings%\%current user%\Application Data"
Dropped PE files
MD5 | File path |
---|---|
98b662ec86b74269166648a4a3ff2f18 | c:\Documents and Settings\"%CurrentUserName%"\Application Data\Qaus\kyygn.exe |
HOSTS file anomalies
No changes have been detected.
Rootkit activity
The Trojan installs the following user-mode hooks in WININET.dll:
HttpSendRequestExA
HttpSendRequestW
InternetSetStatusCallbackW
InternetReadFileExA
InternetSetStatusCallback
InternetQueryDataAvailable
HttpSendRequestExW
InternetReadFile
HttpQueryInfoA
HttpSendRequestA
InternetCloseHandle
InternetSetOptionA
The Trojan installs the following user-mode hooks in CRYPT32.dll:
PFXImportCertStore
The Trojan installs the following user-mode hooks in USER32.dll:
SetCursorPos
DefMDIChildProcA
DefFrameProcA
DefDlgProcA
GetClipboardData
DefMDIChildProcW
DefFrameProcW
GetUpdateRgn
RegisterClassA
GetDCEx
ReleaseCapture
SetCapture
DefWindowProcA
CallWindowProcA
GetUpdateRect
PeekMessageA
CallWindowProcW
GetMessagePos
GetCursorPos
SetWindowTextW
EndPaint
BeginPaint
DefWindowProcW
RegisterClassExA
GetMessageA
DefDlgProcW
SwitchDesktop
OpenInputDesktop
RegisterClassExW
RegisterClassW
GetCapture
PeekMessageW
GetMessageW
GetWindowDC
TranslateMessage
GetDC
ReleaseDC
The Trojan installs the following user-mode hooks in WS2_32.dll:
WSASend
recv
WSARecv
send
closesocket
The Trojan installs the following user-mode hooks in kernel32.dll:
GetFileAttributesExW
The Trojan installs the following user-mode hooks in ntdll.dll:
LdrLoadDll
NtCreateThread
Propagation
Removals
Remove it with Ad-Aware
- Click (here) to download and install Ad-Aware Free Antivirus.
- Update the definition files.
- Run a full scan of your computer.
Manual removal*
- Scan a system with an anti-rootkit tool.
- Terminate malicious process(es) (How to End a Process With the Task Manager):
%original file name%.exe:524
kyygn.exe:1068 - Delete the original Trojan file.
- Delete or disinfect the following files created/modified by the Trojan:
%Documents and Settings%\%current user%\Application Data\Qaus\kyygn.exe (154 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\tmp4254f07e.bat (177 bytes) - Clean the Temporary Internet Files folder, which may contain infected files (How to clean Temporary Internet Files folder).
- Reboot the computer.
Static Analysis
VersionInfo
Company Name:
Product Name: DCOM Manager
Product Version: 1, 10, 0, 0
Legal Copyright: Copyright (C) 2010
Legal Trademarks:
Original Filename: dcommgr.exe
Internal Name: DCOMMGR
File Version: 1, 10, 0, 1
File Description: DCOM Manager
Comments:
Language: English (United States)
Company Name: Product Name: DCOM ManagerProduct Version: 1, 10, 0, 0Legal Copyright: Copyright (C) 2010Legal Trademarks: Original Filename: dcommgr.exeInternal Name: DCOMMGRFile Version: 1, 10, 0, 1File Description: DCOM ManagerComments: Language: English (United States)
PE Sections
Name | Virtual Address | Virtual Size | Raw Size | Entropy | Section MD5 |
---|---|---|---|---|---|
.text | 4096 | 4704 | 5120 | 4.29746 | 0b85c7cb03e84b20894ef6c47d1a66aa |
.rsrc | 12288 | 14664 | 14848 | 4.86441 | d49fb1f26579c5165bd8c2890a3df0d3 |
.data | 28672 | 360448 | 67584 | 5.30906 | f7fe0d50a95dba393446a6cd2fbf405f |
.reloc | 389120 | 24 | 512 | 0.21283 | 6adccfb1a67b5201a2d31467703b316a |
.rdata | 393216 | 65151 | 65536 | 5.35363 | 4c5bd28dcfe6ba34364c038dfcb6b184 |
Dropped from:
Downloaded by:
Similar by SSDeep:
Similar by Lavasoft Polymorphic Checker:
Network Activity
URLs
URL | IP |
---|---|
hxxp://www.google.com.ua/webhp?gfe_rd=cr&ei=WNIWVOz-HOqk8wfGwYHYBg | 173.194.113.216 |
IDS verdicts (Suricata alerts: Emerging Threats ET ruleset)
Traffic
GET /webhp?gfe_rd=cr&ei=WNIWVOz-HOqk8wfGwYHYBg HTTP/1.1
Accept: */*
Connection: Close
User-Agent: Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1; .NET CLR 2.0.50727; .NET CLR 3.0.04506.648; .NET CLR 3.5.21022; .NET4.0C)
Cache-Control: no-cache
Host: VVV.google.com.ua
HTTP/1.1 200 OK
Date: Mon, 15 Sep 2014 11:49:44 GMT
Expires: -1
Cache-Control: private, max-age=0
Content-Type: text/html; charset=UTF-8
Set-Cookie: PREF=ID=2a6a2b4171e5c177:FF=0:TM=1410781784:LM=1410781784:S=jfvQP7LxH54bo9nJ; expires=Wed, 14-Sep-2016 11:49:44 GMT; path=/; domain=.google.com.ua
Set-Cookie: NID=67=Gl81pvzB16mjGd_vZktUTSXVZs5ThkNldduUybuh3Gfh7MFS-pTvq-zosGxB1tG3q-YylSKQL2WBDSH93k4f8Lhw2MJ2bKWF_DGjx1dPWjcXA3dkxIAt4h0ueLm81KcQ; expires=Tue, 17-Mar-2015 11:49:44 GMT; path=/; domain=.google.com.ua; HttpOnly
P3P: CP="This is not a P3P policy! See hXXp://VVV.google.com/support/accounts/bin/answer.py?hl=en&answer=151657 for more info."
Server: gws
X-XSS-Protection: 1; mode=block
X-Frame-Options: SAMEORIGIN
Alternate-Protocol: 80:quic,p=0.002
Connection: close
<!doctype html><html itemscope="" itemtype="hXXp://schema.org/WebPage" lang="uk"><head><meta content="text/html; charset=UTF-8" http-equiv="content-type"><meta content="/images/google_favicon_128.png" itemprop="image"><title>Google</title><script>(function(){window.google={kEI:'WNIWVLuvIYW_ywPKkIKwDQ',kEXPI:'17259,4000116,4007661,4008142,4009033,4010858,4010899,4011228,4011679,4012373,4013823,4014431,4014636,4014805,4016127,4016373,4016824,4017818,4017980,4017982,4018181,4018251,4019031,4019483,4019702,4019798,4019800,4020025,4020029,4020148,4020226,4020240,4020306,4020379,4020381,4020383,4020385,4020438,4020500,4020562,4020572,4020663,4020705,4020738,4020815,4020824,4020872,4020879,4020892,4021071,4021092,4021110,4021125,4021545,4021564,4021641,4021675,4022073,8300007,8300030,8300060,8300072,8300075,8300078,8500223,8500272,8500393,8500474,8500554,8500585,8500593,8500605,10200083,10200347,10200389,10200442,10200491,10200527,10200585,10200597,10200599,10200671,10200673',kCSI:{e:'17259,4000116,4007661,4008142,4009033,4010858,4010899,4011228,4011679,4012373,4013823,4014431,4014636,4014805,4016127,4016373,4016824,4017818,4017980,4017982,4018181,4018251,4019031,4019483,4019702,4019798,4019800,4020025,4020029,4020148,4020226,4020240,4020306,4020379,4020381,4020383,4020385,4020438,4020500,4020562,4020572,4020663,4020705,4020738,4020815,4020824,4020872,4020879,4020892,4021071,4021092,4021110,4021125,4021545,4021564,4021641,4021675,4022073,8300007,8300030,8300060,8300072,8
<<< skipped >>>
Map
The Trojan connects to the servers at the folowing location(s):
Strings from Dumps
Explorer.EXE_1684_rwx_00EE0000_0002C000:
.text
.text
`.data
`.data
.reloc
.reloc
HTTP/1.1
HTTP/1.1
userenv.dll
userenv.dll
del "%s"
del "%s"
if exist "%s" goto d
if exist "%s" goto d
del /F "%s"
del /F "%s"
urlmon.dll
urlmon.dll
cabinet.dll
cabinet.dll
gdiplus.dll
gdiplus.dll
GdiplusShutdown
GdiplusShutdown
ole32.dll
ole32.dll
gdi32.dll
gdi32.dll
2(3:"0&6
2(3:"0&6
=!*73/;-~4*6
=!*73/;-~4*6
=48%?$93*5#
=48%?$93*5#
/>;')/".51
/>;')/".51
;&,?;,
;&,?;,
29/3,1'4
29/3,1'4
83%9&;->
83%9&;->
!:(>-'5`
!:(>-'5`
hXXp://
hXXp://
hXXps://
hXXps://
HTTP/1.
HTTP/1.
PR_OpenTCPSocket
PR_OpenTCPSocket
!!!!!!""#$%&'(((((())* ,-.IIIIIIII//I01234445656789:;9:;IIIII?@ABCDEF
!!!!!!""#$%&'(((((())* ,-.IIIIIIII//I01234445656789:;9:;IIIII?@ABCDEF
GetProcessHeap
GetProcessHeap
KERNEL32.dll
KERNEL32.dll
MapVirtualKeyW
MapVirtualKeyW
MsgWaitForMultipleObjects
MsgWaitForMultipleObjects
SetKeyboardState
SetKeyboardState
GetKeyboardState
GetKeyboardState
OpenWindowStationW
OpenWindowStationW
GetProcessWindowStation
GetProcessWindowStation
CreateWindowStationW
CreateWindowStationW
CloseWindowStation
CloseWindowStation
SetProcessWindowStation
SetProcessWindowStation
ExitWindowsEx
ExitWindowsEx
USER32.dll
USER32.dll
RegCreateKeyExW
RegCreateKeyExW
CryptImportKey
CryptImportKey
RegOpenKeyExW
RegOpenKeyExW
CryptDestroyKey
CryptDestroyKey
RegCloseKey
RegCloseKey
RegEnumKeyExW
RegEnumKeyExW
ADVAPI32.dll
ADVAPI32.dll
UrlUnescapeA
UrlUnescapeA
SHDeleteKeyW
SHDeleteKeyW
PathIsURLW
PathIsURLW
SHLWAPI.dll
SHLWAPI.dll
ShellExecuteW
ShellExecuteW
SHELL32.dll
SHELL32.dll
Secur32.dll
Secur32.dll
SetViewportOrgEx
SetViewportOrgEx
GDI32.dll
GDI32.dll
WS2_32.dll
WS2_32.dll
CertDeleteCertificateFromStore
CertDeleteCertificateFromStore
CertOpenSystemStoreW
CertOpenSystemStoreW
CertCloseStore
CertCloseStore
PFXImportCertStore
PFXImportCertStore
CertEnumCertificatesInStore
CertEnumCertificatesInStore
CertDuplicateCertificateContext
CertDuplicateCertificateContext
PFXExportCertStoreEx
PFXExportCertStoreEx
CRYPT32.dll
CRYPT32.dll
HttpSendRequestExA
HttpSendRequestExA
HttpQueryInfoA
HttpQueryInfoA
HttpSendRequestExW
HttpSendRequestExW
HttpSendRequestW
HttpSendRequestW
GetUrlCacheEntryInfoW
GetUrlCacheEntryInfoW
HttpAddRequestHeadersW
HttpAddRequestHeadersW
HttpAddRequestHeadersA
HttpAddRequestHeadersA
HttpSendRequestA
HttpSendRequestA
InternetCrackUrlA
InternetCrackUrlA
HttpOpenRequestA
HttpOpenRequestA
WININET.dll
WININET.dll
OLEAUT32.dll
OLEAUT32.dll
NETAPI32.dll
NETAPI32.dll
kernel32.dll
kernel32.dll
"%s" %s
"%s" %s
/c "%s"
/c "%s"
%sx.%s
%sx.%s
%sx
%sx
nspr4.dll
nspr4.dll
SysShadow
SysShadow
e.dat
e.dat
%Documents and Settings%\%current user%\Application Data\Agak\ygnub.ves
%Documents and Settings%\%current user%\Application Data\Agak\ygnub.ves
%Documents and Settings%\%current user%\Application Data\Agak
%Documents and Settings%\%current user%\Application Data\Agak
ygnub.ves
ygnub.ves
Global\{DB4D22B9-B2B2-97DB-E877-EA3743BAADDA}
Global\{DB4D22B9-B2B2-97DB-E877-EA3743BAADDA}
%Documents and Settings%\%current user%\Application Data
%Documents and Settings%\%current user%\Application Data
{4D369092-0099-01A0-E877-EA3743BAADDA}
{4D369092-0099-01A0-E877-EA3743BAADDA}