TrojanPSW.Win32.Zbot_07013bd44f

Dynamic Analysis

Payload

No specific payload has been found.

Process activity

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

%original file name%.exe:484
%original file name%.exe:1808
mati.exe:260
mati.exe:972

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

Explorer.EXE:532

File activity

The process %original file name%.exe:484 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\Gyyg\mati.exe (7386 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\tmp1bd0c7cc.bat (177 bytes)

Registry activity

The process %original file name%.exe:484 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" = "EC AB 9A CF B5 93 80 C0 50 05 DC 06 09 AF 63 29"

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

The process %original file name%.exe:1808 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" = "25 66 03 84 3E 07 86 7F CC 06 05 C5 47 74 49 48"

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

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

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

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

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

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

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

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

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

The process mati.exe:260 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" = "C4 16 A0 1A 5F C4 AB B2 F6 C7 41 AB 73 12 94 1E"

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

The process mati.exe:972 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" = "10 CF 2B 10 62 74 A6 AE 2F FB B0 1C 00 78 6C 37"

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

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

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

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

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

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

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

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

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

Dropped PE files

MD5	File path
e8e4c4e313ad929dc309f1f96fb77d98	c:\Documents and Settings\"%CurrentUserName%"\Application Data\Gyyg\mati.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

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:484
   %original file name%.exe:1808
   mati.exe:260
   mati.exe:972
   

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

   %Documents and Settings%\%current user%\Application Data\Gyyg\mati.exe (7386 bytes)
   %Documents and Settings%\%current user%\Local Settings\Temp\tmp1bd0c7cc.bat (177 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

Company Name: M90BJ85TD90G
Product Name: P70OC67LN67W
Product Version: 1,0,0,0
Legal Copyright: O80TQ70SD81H
Legal Trademarks:
Original Filename: W84EB82EQ72O
Internal Name:
File Version: X84KG80ZR81W
File Description: V67TM72BD68K
Comments:
Language: English (United States)

Company Name: M90BJ85TD90GProduct Name: P70OC67LN67WProduct Version: 1,0,0,0Legal Copyright: O80TQ70SD81HLegal Trademarks: Original Filename: W84EB82EQ72OInternal Name: File Version: X84KG80ZR81WFile Description: V67TM72BD68KComments: Language: English (United States)

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	187944	188416	4.41508	128f2a62108429ef4aeb169bec3050ab

Dropped from:

Downloaded by:

Similar by SSDeep:

Similar by Lavasoft Polymorphic Checker:

Network Activity

URLs

URL	IP
hxxp://pierjean-albrecht.com/wp_content/config.bin	109.200.196.187
hxxp://www.google.com/webhp
hxxp://www.google.com/webhp?gfe_rd=cr&ei=RvmWU-OgB8Sc8Aaa7IC4BQ
hxxp://www.google.com.ua/webhp?gfe_rd=cr&ei=RvmWU-OgB8Sc8Aaa7IC4BQ

IDS verdicts (Suricata alerts: Emerging Threats ET ruleset)

Traffic

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.com.ua/webhp?gfe_rd=cr&ei=RvmWU-OgB8Sc8Aaa7IC4BQ

Content-Length: 267

Date: Tue, 10 Jun 2014 12:25:42 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.com.ua/webhp?gfe_rd=cr&ei=RvmWU-OgB8Sc8Aaa7IC4BQ">here</A>...</BODY></HTML>....

GET /wp_content/config.bin 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: pierjean-albrecht.com

Cache-Control: no-cache

HTTP/1.1 200 OK

Date: Tue, 10 Jun 2014 12:25:24 GMT

Server: Apache/2.4.9 (Unix) OpenSSL/1.0.1e-fips mod_bwlimited/1.4 PHP/5.4.27

Last-Modified: Tue, 03 Jun 2014 17:55:16 GMT

ETag: "8686-4faf236e66c66"

Accept-Ranges: bytes

Content-Length: 34438

Connection: close

Content-Type: application/octet-stream

.n... .5x.L..........&...7{...^..*H..K...hv.*=.%.J.7.>.......6.p...{C....S2...iF.3.3.e....p....R...*.....^.Z.s.M.{...2.z.?_.8\..[...... ~b.*..$q.v.....'..\.j.....Gy...Js..p0wr6.j?s.-....3.`.......\.....\.....a.....AX......:..z.IRG.u3<g....@..>F...;.v.....k,!;.....qV._.ka...M....?n>......}..>KJJP.,....Jy.=i..'..h..D.1.........c-..)G6.^...?Q4...0..3|.Y.q`...V.ww.D.%R.'C.d....}O=.E....F.(|.L4c....@.......K4..i....YW..N.I...@sP.L. ..9......fm...l%...o..Z....d....6...{r...yA..x.qH.&G.Ww[.d.a]...{5..?%h..W[.....K.4kD..x..\....X.>.w.9.......F...oJ.....JAW....(kJ%q. ".kNJg.}.7?.J.......8.Vkm..1[..R....O.0..6}......~.........w.~.Me...eA.d.E.^..,.s.0...... k@ctsKnl.h..JT:]P..BK.u./..T..0........{e..TB...y...O"...~>..<@...E.......^.t.M.%.G..o=..:0$..c#:.(x.J...*..-. ...,[...z...=..4...!.U.g...6:....|..\*....../...A...*].8.Tk.b..w..S.f...._3.\O.cT`..s?..7....\o.....9...@.......0....1dmA........... ........~..Yyg...=!m..E...=..1._^..C..n...?F.{.O.......w...Ev.>x..~..., ......A........do5#..`.......X.3.....e.......`.izf%..%.*.....%G.j.?.mj.sSE..._.. 0..e...&.....o.T).,.O.N..4jl....{i....M.v......*... o\...CH...D.^^L<....x.;.)..~...^Bq5.W.Z..#..!.&....`.BG.v.]...W'.Z).<....t....M..g@.\P.......;..........Pg,~[n.....?<j.%........-......&SD.F........d p2.....E.'.o.....,....m...f.u.$.....\?.._\f..O/.....Q....c.....M2.,G...3...47A..G.0X...y....U...7.s....=;.*"e..Z[.S..&.q.LU.f..F...,d.]..S~.@C....O./t.W...t7.y&...wF........,..Z.n..f..?.B.... g3g...?.e...J$....R{.....C.. ?E.z..qu......m2E.d..`...

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GET /webhp?gfe_rd=cr&ei=RvmWU-OgB8Sc8Aaa7IC4BQ 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: Tue, 10 Jun 2014 12:25:42 GMT

Expires: -1

Cache-Control: private, max-age=0

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

Set-Cookie: PREF=ID=14525361b53be154:FF=0:TM=1402403142:LM=1402403142:S=8v1PFFhPjlabOMDA; expires=Thu, 09-Jun-2016 12:25:42 GMT; path=/; domain=.google.com.ua

Set-Cookie: NID=67=Ijni9rlF5_ImnW4-I3a_D4FrxaLhzXnAcP6bFYWWm63OPTJrr3nmexTX4z2_tdloXwCb0bothErOqw3DNoabr2oKCZdqk5EMNjI9pr-GuOldFU9f4o46rm3kOSxD46iS; expires=Wed, 10-Dec-2014 12:25:42 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

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:"RvmWU470JOrQsQTWxYB4",getEI:function(a){for(var c;a&&(!a.getAttribute||!(c=a.getAttribute("eid")));)a=a.parentNode;return c||google.kEI},https:function(){return"https:"==window.location.protocol},kEXPI:"4791,17259,4000116,4007661,4007830,4008142,4009033,4009641,4010806,4010858,4010899,4011228,4011258,4011679,4012373,4012504,4013414,4013591,4013723,4013758,4013787,4013823,4013967,4013979,4014016,4014093,4014431,4014515,4014637,4014671,4014810,4014813,4014991,4015234,4015260,4015266,4015339,4015550,4015587,4015633,4015772,4016127,4016309,4016367,4016373,4016487,4016824,4016855,4016882,4016933,4016976,4017063,4017148,4017161,4017203,4017224,4017278,4017280,4017285,4017298,4017544,4017595,4017612,4017639,4017681,4017694,4017710,4017742,4017788,4017818,4017821,4017824,4017857,4017880,4017913,4017922,4017963,4017981,4017982,4018009,4018019,4018030,4018126,4018159,4018176,4018181,4018283,4018363,4018416,4018424,4018480,4018513,4018519,4018532,4018554,4018566,4018569,4018619,4018621,4018933,8300012,8300027,8500223,8500252,8500256,8500272,8500306,8500332,8500357,8500365,8500379,8500393,8500400,8500421,8500433,8500444,10200012,10200029,10200048,10200053,10200083,10200120,10200134,10200136,10200155,1

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Map

The Trojan-PSW connects to the servers at the folowing location(s):

Strings from Dumps

Explorer.EXE_532_rwx_01E00000_00027000:

.text

.text

`.data

`.data

.reloc

.reloc

http://www.google.com/webhp

http://www.google.com/webhp

PR_OpenTCPSocket

PR_OpenTCPSocket

gdiplus.dll

gdiplus.dll

GdiplusShutdown

GdiplusShutdown

ole32.dll

ole32.dll

gdi32.dll

gdi32.dll

: ;2*8.>

: ;2*8.>

3.#70!2)

3.#70!2)

x#m`a`cmddt-

x#m`a`cmddt-

6 !26!1'1

6 !26!1'1

7"52),,>

7"52),,>

;<)?$*%,

;<)?$*%,

71.(5;4=

71.(5;4=

(203,2$0

(203,2$0

/?./,5 <</pre><pre>:>(<<44=3%</pre><pre>8%/<8/?)?/</pre><pre>%/><!8?>!</!8?></pre><pre>HTTP/1.1</pre><pre>userenv.dll</pre><pre>del "%s"</pre><pre>if exist "%s" goto d</pre><pre>del /F "%s"</pre><pre>Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1; SV1)</pre><pre>urlmon.dll</pre><pre>cabinet.dll</pre><pre>http://</pre><pre>https://</pre><pre>HTTP/1.</pre><pre>SSSh,4</pre><pre>GetProcessHeap</pre><pre>KERNEL32.dll</pre><pre>SetKeyboardState</pre><pre>ExitWindowsEx</pre><pre>MsgWaitForMultipleObjects</pre><pre>MapVirtualKeyW</pre><pre>GetKeyboardState</pre><pre>OpenWindowStationW</pre><pre>GetProcessWindowStation</pre><pre>CreateWindowStationW</pre><pre>CloseWindowStation</pre><pre>SetProcessWindowStation</pre><pre>USER32.dll</pre><pre>RegOpenKeyExW</pre><pre>RegEnumKeyExW</pre><pre>RegCloseKey</pre><pre>RegCreateKeyExW</pre><pre>ADVAPI32.dll</pre><pre>PathIsURLW</pre><pre>UrlUnescapeA</pre><pre>SHDeleteKeyW</pre><pre>SHLWAPI.dll</pre><pre>ShellExecuteW</pre><pre>SHELL32.dll</pre><pre>Secur32.dll</pre><pre>SetViewportOrgEx</pre><pre>GDI32.dll</pre><pre>WS2_32.dll</pre><pre>PFXImportCertStore</pre><pre>CertDeleteCertificateFromStore</pre><pre>CertOpenSystemStoreW</pre><pre>CertCloseStore</pre><pre>CertEnumCertificatesInStore</pre><pre>CertDuplicateCertificateContext</pre><pre>PFXExportCertStoreEx</pre><pre>CRYPT32.dll</pre><pre>HttpSendRequestExA</pre><pre>HttpQueryInfoA</pre><pre>HttpSendRequestExW</pre><pre>HttpSendRequestW</pre><pre>HttpSendRequestA</pre><pre>InternetCrackUrlA</pre><pre>HttpOpenRequestA</pre><pre>HttpAddRequestHeadersA</pre><pre>GetUrlCacheEntryInfoW</pre><pre>HttpAddRequestHeadersW</pre><pre>WININET.dll</pre><pre>OLEAUT32.dll</pre><pre>NETAPI32.dll</pre><pre>6 6&6/656{6</pre><pre>cGlobal\XXX</pre><pre>nspr4.dll</pre><pre>nss3.dll</pre><pre>SysShadow</pre><pre>kernel32.dll</pre><pre>"%s" %s</pre><pre>/c "%s"</pre><pre>%sx.%s</pre><pre>%sx</pre><pre>%Documents and Settings%\%current user%\Application Data\Amvisu\wywee.iqr</pre><pre>%Documents and Settings%\%current user%\Application Data\Amvisu</pre><pre>wywee.iqr</pre><pre>Global\{565FD229-C112-2A4A-5FA4-60C3FA2A602D}</pre><pre>%Documents and Settings%\%current user%\Application Data</pre><pre>{C024600C-7337-BC31-5FA4-60C3FA2A602D}</pre>