HEUR:Trojan.Win32.Generic (Kaspersky), Trojan.GenericKD.1712762 (AdAware), Trojan-PSW.Win32.Zbot.6.FD, GenericInjector.YR, BackdoorCaphaw_QKKBAL.YR, TrojanPSWZbot.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: 6e4e48dc7c1e25ec82424f9b4ea47f28
SHA1: 8f65df3775fbf49e65f49a2dc9981216354df159
SHA256: fd16c1d1c1764e4e8fe5b0a792279304ad1176419fbfaad82745c9bb1e913788
SSDeep: 12288:mOaqTqVVcW9glevA7vAYtdZcrVDCuuwi0x:lTDWCeEAkdZcrNCuuwi0
Size: 429056 bytes
File type: EXE
Platform: WIN32
Entropy: Packed
PEID: UPolyXv05_v6
Company: no certificate found
Created at: 2014-06-10 14:48:41
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-PSW creates the following process(es):
quug.exe:2548
tmp.exe:3720
.exe:1172
%original file name%.exe:2576
The Trojan-PSW injects its code into the following process(es):
Explorer.EXE:1948
Mutexes
The following mutexes were created/opened:No objects were found.
File activity
The process tmp.exe:3720 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\Vetuel\quug.exe (141 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\tmp03baa6a1.bat (213 bytes)
The process %original file name%.exe:2576 makes changes in the file system.
The Trojan-PSW creates and/or writes to the following file(s):
%Documents and Settings%\%current user%\Local Settings\Temp\tmp.exe (141 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\ .exe (35 bytes)
%System%\drivers\etc\hosts (216 bytes)
Registry activity
The process quug.exe:2548 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" = "E5 B9 59 E9 8C 73 75 05 25 7D AB 26 85 8E A8 41"
[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"AppData" = "%Documents and Settings%\%current user%\Application Data"
The process tmp.exe:3720 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" = "D8 AA 04 1A 82 46 4B 89 B2 8A 8E 55 BD E8 9A 25"
[HKCU\Software\Microsoft\Gequhu]
"Ysti" = "EC 98 78 48 7B A8 A6 2A A0 90 E0 D4 9B 32 B4 1E"
[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"AppData" = "%Documents and Settings%\%current user%\Application Data"
The process .exe:1172 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" = "BC 3E 25 14 4D 35 97 F9 72 A2 6F AC 01 F5 95 81"
[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"AppData" = "%Documents and Settings%\%current user%\Application Data"
The process %original file name%.exe:2576 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" = "FD 29 B6 4E FB A7 0D 47 E5 7F AC CB 64 22 85 06"
[HKCU\Software\Microsoft\Windows\ShellNoRoam\MUICache\%Documents and Settings%\%current user%\Local Settings\Temp]
"tmp.exe" = "tmp"
[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2\{fdd9f6f3-7454-11e2-b4cd-806d6172696f}]
"BaseClass" = "Drive"
[HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap]
"AutoDetect" = "1"
[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2\{773a730e-74fb-11e2-b597-000c293bdf2f}]
"BaseClass" = "Drive"
[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2\{fdd9f6f2-7454-11e2-b4cd-806d6172696f}]
"BaseClass" = "Drive"
[HKCU\Software\Microsoft\Gequhu]
"Ysti" = "EC 98 78 48 7B A8 A6 2A A0 90 E0 D4 9B 32 B4 1E"
[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"AppData" = "%Documents and Settings%\%current user%\Application Data"
[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2\{fdd9f6f5-7454-11e2-b4cd-806d6172696f}]
"BaseClass" = "Drive"
[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"Cache" = "%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files"
"Cookies" = "%Documents and Settings%\%current user%\Cookies"
The Trojan-PSW modifies IE settings for security zones to map all web-nodes that bypassing the proxy to the Intranet Zone:
[HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap]
"ProxyBypass" = "1"
The Trojan-PSW 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:
"UNCAsIntranet" = "1"
The Trojan-PSW modifies IE settings for security zones to map all urls to the Intranet Zone:
"IntranetName" = "1"
Dropped PE files
MD5 | File path |
---|---|
ea7758700ae80579bc07defb1129497d | c:\Documents and Settings\"%CurrentUserName%"\Application Data\Vetuel\quug.exe |
e0d21bee6dae44a7c6e1896d7a8c7463 | c:\Documents and Settings\"%CurrentUserName%"\Local Settings\Temp\ .exe |
HOSTS file anomalies
The Trojan-PSW modifies "%System%\drivers\etc\hosts" file which is used to translate DNS entries to IP addresses. The modified file is 216 bytes in size. The following strings are added to the hosts file listed below:
127.0.0.1 | www.website.com |
127.0.0.1 | www.website.com |
127.0.0.1 | www.website.com |
127.0.0.1 | www.website.com |
127.0.0.1 | www.website.com |
127.0.0.1 | www.website.com |
127.0.0.1 | www.website.com |
127.0.0.1 | www.website.com |
Rootkit activity
The Trojan-PSW installs the following user-mode hooks in WININET.dll:
HttpSendRequestExW
HttpSendRequestExA
InternetReadFileExA
HttpSendRequestA
HttpSendRequestW
InternetQueryDataAvailable
InternetCloseHandle
HttpQueryInfoA
InternetReadFile
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):
quug.exe:2548
tmp.exe:3720
.exe:1172
%original file name%.exe:2576 - 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\Vetuel\quug.exe (141 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\tmp03baa6a1.bat (213 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\tmp.exe (141 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\ .exe (35 bytes)
%System%\drivers\etc\hosts (216 bytes) - Restore the original content of the HOSTS file (%System%\drivers\etc\hosts): 127.0.0.1 localhost
- Reboot the computer.
Static Analysis
VersionInfo
Company Name: grtrading
Product Name: grtrading
Product Version: 1.0.0.0
Legal Copyright: 3487443
Legal Trademarks: grtrading
Original Filename: force.exe
Internal Name: force.exe
File Version: 1.0
File Description: receipt
Comments: Þscription%
Language: Language Neutral
Company Name: grtradingProduct Name: grtradingProduct Version: 1.0.0.0Legal Copyright: 3487443Legal Trademarks: grtradingOriginal Filename: force.exeInternal Name: force.exeFile Version: 1.0 File Description: receiptComments: Þscription%Language: Language Neutral
PE Sections
Name | Virtual Address | Virtual Size | Raw Size | Entropy | Section MD5 |
---|---|---|---|---|---|
.rsrc | 8192 | 5312 | 5632 | 2.99546 | 83c3500efa89bccdd0d13316d27d7cca |
.text | 16384 | 422168 | 422400 | 5.25796 | 46f9d7a7d4c2463391e7687413e5dec0 |
.reloc | 442368 | 12 | 512 | 0.084755 | 0c2499b5f0b897f09d226af40b0979a5 |
Dropped from:
Downloaded by:
Similar by SSDeep:
Similar by Lavasoft Polymorphic Checker:
Network Activity
URLs
IDS verdicts (Suricata alerts: Emerging Threats ET ruleset)
Traffic
Map
The Trojan-PSW connects to the servers at the folowing location(s):
Strings from Dumps
Explorer.EXE_1948_rwx_01100000_00027000:
.text
.text
`.data
`.data
.reloc
.reloc
http://www.google.com/webhp
http://www.google.com/webhp
PR_OpenTCPSocket
PR_OpenTCPSocket
ORZ[UZj_%STO
ORZ[UZj_%STO
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\Uncu\isluq.qey</pre><pre>%Documents and Settings%\%current user%\Application Data\Uncu</pre><pre>isluq.qey</pre><pre>Global\{6B8FD7C2-0BD2-D9FA-CE37-AE2463C2A454}</pre><pre>%Documents and Settings%\%current user%\Application Data</pre><pre>{FDF465E7-B9F7-4F81-CE37-AE2463C2A454}</pre>