HEUR:Trojan.Win32.Generic (Kaspersky), Gen:Variant.Kazy.165 (B) (Emsisoft), Gen:Variant.Kazy.165 (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: d7b46c388fe5666a2ee99f5d62b54a1d
SHA1: ee588b477dc19b04d381a78e011c62cf00b096d2
SHA256: 1679a71143a32e8a4002fea66032ac83fdf21463dcfa9c42ad2ab83cf31937bf
SSDeep: 3072:C4m5miWR6kw c/j7vp/C6 2cgzo4FREHgEEBx1yTSQwC:CRsNg/j7SZioqREHgEwQX
Size: 141824 bytes
File type: EXE
Platform: WIN32
Entropy: Not Packed
PEID: BorlandDelphi30, UPolyXv05_v6
Company: no certificate found
Created at: 2014-08-23 10:33:44
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):
sizao.exe:140
%original file name%.exe:580
The Trojan injects its code into the following process(es):
Explorer.EXE:1140
Mutexes
The following mutexes were created/opened:No objects were found.
File activity
The process %original file name%.exe:580 makes changes in the file system.
The Trojan creates and/or writes to the following file(s):
%Documents and Settings%\%current user%\Application Data\Niku\sizao.exe (141 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\tmpc6c8d54b.bat (177 bytes)
Registry activity
The process sizao.exe:140 makes changes in the system registry.
The Trojan creates and/or sets the following values in system registry:
[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "1D B1 B0 28 6D 85 C7 87 95 B2 D5 11 C6 C0 62 51"
[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"AppData" = "%Documents and Settings%\%current user%\Application Data"
The process %original file name%.exe:580 makes changes in the system registry.
The Trojan creates and/or sets the following values in system registry:
[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "F0 BD ED 27 B0 79 F1 89 59 0D 61 6F 65 55 93 5C"
[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"AppData" = "%Documents and Settings%\%current user%\Application Data"
[HKCU\Software\Microsoft\Piywa]
"Bitakeaq" = "E3 66 36 8D D1 12 48 B6 3E 59 6C 67 37 05 CB D6"
Dropped PE files
| MD5 | File path |
|---|---|
| f3d282cf8fec3760ae4a6d66cb027827 | c:\Documents and Settings\"%CurrentUserName%"\Application Data\Niku\sizao.exe |
HOSTS file anomalies
No changes have been detected.
Rootkit activity
The Trojan installs the following user-mode hooks in WININET.dll:
HttpSendRequestExA
HttpSendRequestW
InternetReadFileExA
InternetQueryDataAvailable
HttpSendRequestExW
InternetReadFile
HttpQueryInfoA
HttpSendRequestA
InternetCloseHandle
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
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
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):
sizao.exe:140
%original file name%.exe:580 - Delete the original Trojan file.
- Delete or disinfect the following files created/modified by the Trojan:
%Documents and Settings%\%current user%\Application Data\Niku\sizao.exe (141 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\tmpc6c8d54b.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
No information is available.
No information is available.
PE Sections
| Name | Virtual Address | Virtual Size | Raw Size | Entropy | Section MD5 |
|---|---|---|---|---|---|
| .text | 4096 | 132676 | 133120 | 4.63829 | 3b5f77ddd207df8c6358f528f9d28ce0 |
| .data | 139264 | 8268 | 1024 | 1.09466 | 66cf33f72e1518b5f5ac07f5ea09f178 |
| .reloc | 151552 | 5738 | 6144 | 3.90878 | afb6ed3d8fd907dd00b0cc52ff773c33 |
Dropped from:
Downloaded by:
Similar by SSDeep:
Similar by Lavasoft Polymorphic Checker:
Network Activity
URLs
| URL | IP |
|---|---|
| hxxp://162.213.250.240/config.bin |
IDS verdicts (Suricata alerts: Emerging Threats ET ruleset)
Traffic
GET /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: 162.213.250.240
Cache-Control: no-cache
HTTP/1.1 404 Not Found
Date: Fri, 19 Sep 2014 17:55:25 GMT
Server: Apache/2.2.16 (Debian)
Vary: Accept-Encoding
Content-Length: 289
Connection: close
Content-Type: text/html; charset=iso-8859-1
<!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML 2.0//EN">.<html><head>.<title>404 Not Found</title>.</head><body>.<h1>Not Found</h1>.<p>The requested URL /config.bin was not found on this server.</p>.<hr>.<address>Apache/2.2.16 (Debian) Server at 162.213.250.240 Port 80</address>.</body></html>...
GET /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: 162.213.250.240
Cache-Control: no-cache
HTTP/1.1 404 Not Found
Date: Fri, 19 Sep 2014 17:55:13 GMT
Server: Apache/2.2.16 (Debian)
Vary: Accept-Encoding
Content-Length: 289
Connection: close
Content-Type: text/html; charset=iso-8859-1
<!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML 2.0//EN">.<html><head>.<title>404 Not Found</title>.</head><body>.<h1>Not Found</h1>.<p>The requested URL /config.bin was not found on this server.</p>.<hr>.<address>Apache/2.2.16 (Debian) Server at 162.213.250.240 Port 80</address>.</body></html>...
GET /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: 162.213.250.240
Cache-Control: no-cache
HTTP/1.1 404 Not Found
Date: Fri, 19 Sep 2014 17:55:07 GMT
Server: Apache/2.2.16 (Debian)
Vary: Accept-Encoding
Content-Length: 289
Connection: close
Content-Type: text/html; charset=iso-8859-1
<!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML 2.0//EN">.<html><head>.<title>404 Not Found</title>.</head><body>.<h1>Not Found</h1>.<p>The requested URL /config.bin was not found on this server.</p>.<hr>.<address>Apache/2.2.16 (Debian) Server at 162.213.250.240 Port 80</address>.</body></html>...
GET /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: 162.213.250.240
Cache-Control: no-cache
HTTP/1.1 404 Not Found
Date: Fri, 19 Sep 2014 17:55:19 GMT
Server: Apache/2.2.16 (Debian)
Vary: Accept-Encoding
Content-Length: 289
Connection: close
Content-Type: text/html; charset=iso-8859-1
<!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML 2.0//EN">.<html><head>.<title>404 Not Found</title>.</head><body>.<h1>Not Found</h1>.<p>The requested URL /config.bin was not found on this server.</p>.<hr>.<address>Apache/2.2.16 (Debian) Server at 162.213.250.240 Port 80</address>.</body></html>...
GET /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: 162.213.250.240
Cache-Control: no-cache
HTTP/1.1 404 Not Found
Date: Fri, 19 Sep 2014 17:55:19 GMT
Server: Apache/2.2.16 (Debian)
Vary: Accept-Encoding
Content-Length: 289
Connection: close
Content-Type: text/html; charset=iso-8859-1
<!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML 2.0//EN">.<html><head>.<title>404 Not Found</title>.</head><body>.<h1>Not Found</h1>.<p>The requested URL /config.bin was not found on this server.</p>.<hr>.<address>Apache/2.2.16 (Debian) Server at 162.213.250.240 Port 80</address>.</body></html>...
GET /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: 162.213.250.240
Cache-Control: no-cache
HTTP/1.1 404 Not Found
Date: Fri, 19 Sep 2014 17:55:25 GMT
Server: Apache/2.2.16 (Debian)
Vary: Accept-Encoding
Content-Length: 289
Connection: close
Content-Type: text/html; charset=iso-8859-1
<!DOCTYPE HTML PUBLIC "-/..
GET /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: 162.213.250.240
Cache-Control: no-cache
HTTP/1.1 404 Not Found
Date: Fri, 19 Sep 2014 17:55:13 GMT
Server: Apache/2.2.16 (Debian)
Vary: Accept-Encoding
Content-Length: 289
Connection: close
Content-Type: text/html; charset=iso-8859-1
<!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML 2.0//EN">.<html><head>.<title>404 Not Found</title>.</head><body>.<h1>Not Found</h1>.<p>The requested URL /config.bin was not found on this server.</p>.<hr>.<address>Apache/2.2.16 (Debian) Server at 162.213.250.240 Port 80</address>.</body></html>...
GET /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: 162.213.250.240
Cache-Control: no-cache
HTTP/1.1 404 Not Found
Date: Fri, 19 Sep 2014 17:55:08 GMT
Server: Apache/2.2.16 (Debian)
Vary: Accept-Encoding
Content-Length: 289
Connection: close
Content-Type: text/html; charset=iso-8859-1
<!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML 2.0//EN">.<html><head>.<title>404 Not Found</title>.</head><body>.<h1>Not Found</h1>.<p>The requested URL /config.bin was not found on this server.</p>.<hr>.<address>Apache/2.2.16 (Debian) Server at 162.213.250.240 Port 80</address>.</body></html>...
Map
The Trojan connects to the servers at the folowing location(s):
Strings from Dumps
Explorer.EXE_1140_rwx_01E00000_00027000:
.text
.text
`.data
`.data
.reloc
.reloc
PR_OpenTCPSocket
PR_OpenTCPSocket
HTTP/1.1
HTTP/1.1
hXXp://
hXXp://
hXXps://
hXXps://
HTTP/1.
HTTP/1.
)472$"% *
)472$"% *
(563%#$* =
(563%#$* =
"?2&!0#8
"?2&!0#8
>#.:=,?$
>#.:=,?$
5E6/1&
5E6/1&
.yVX`|y
.yVX`|y
8%/
8%/
%/>!
%/>!
VJL%uxu"2#")0.9gy}*dM
VJL%uxu"2#")0.9gy}*dM
hXXp://VVV.google.com / webhp
hXXp://VVV.google.com / webhp
userenv.dll
userenv.dll
del "%s"
del "%s"
if exist "%s" goto d
if exist "%s" goto d
del /F "%s"
del /F "%s"
Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1; SV1)
Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1; SV1)
urlmon.dll
urlmon.dll
cabinet.dll
cabinet.dll
gdiplus.dll
gdiplus.dll
GdiplusShutdown
GdiplusShutdown
ole32.dll
ole32.dll
gdi32.dll
gdi32.dll
SSSh41
SSSh41
GetProcessHeap
GetProcessHeap
KERNEL32.dll
KERNEL32.dll
ExitWindowsEx
ExitWindowsEx
SetKeyboardState
SetKeyboardState
OpenWindowStationW
OpenWindowStationW
GetProcessWindowStation
GetProcessWindowStation
CreateWindowStationW
CreateWindowStationW
CloseWindowStation
CloseWindowStation
SetProcessWindowStation
SetProcessWindowStation
GetKeyboardState
GetKeyboardState
MsgWaitForMultipleObjects
MsgWaitForMultipleObjects
MapVirtualKeyW
MapVirtualKeyW
USER32.dll
USER32.dll
RegOpenKeyExW
RegOpenKeyExW
RegEnumKeyExW
RegEnumKeyExW
RegCloseKey
RegCloseKey
RegCreateKeyExW
RegCreateKeyExW
ADVAPI32.dll
ADVAPI32.dll
PathIsURLW
PathIsURLW
UrlUnescapeA
UrlUnescapeA
SHDeleteKeyW
SHDeleteKeyW
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
PFXImportCertStore
PFXImportCertStore
CertDeleteCertificateFromStore
CertDeleteCertificateFromStore
CertOpenSystemStoreW
CertOpenSystemStoreW
CertCloseStore
CertCloseStore
CertEnumCertificatesInStore
CertEnumCertificatesInStore
CertDuplicateCertificateContext
CertDuplicateCertificateContext
PFXExportCertStoreEx
PFXExportCertStoreEx
CRYPT32.dll
CRYPT32.dll
HttpSendRequestExA
HttpSendRequestExA
HttpQueryInfoA
HttpQueryInfoA
HttpSendRequestExW
HttpSendRequestExW
HttpSendRequestW
HttpSendRequestW
HttpSendRequestA
HttpSendRequestA
GetUrlCacheEntryInfoW
GetUrlCacheEntryInfoW
HttpAddRequestHeadersW
HttpAddRequestHeadersW
HttpAddRequestHeadersA
HttpAddRequestHeadersA
InternetCrackUrlA
InternetCrackUrlA
HttpOpenRequestA
HttpOpenRequestA
WININET.dll
WININET.dll
OLEAUT32.dll
OLEAUT32.dll
NETAPI32.dll
NETAPI32.dll
nspr4.dll
nspr4.dll
SysShadow
SysShadow
cGlobal\XXX
cGlobal\XXX
kernel32.dll
kernel32.dll
"%s" %s
"%s" %s
/c "%s"
/c "%s"
%sx.%s
%sx.%s
%sx
%sx
%Documents and Settings%\%current user%\Application Data
%Documents and Settings%\%current user%\Application Data
{3F11FFF9-326E-AE28-E288-E04225BAEE77}
{3F11FFF9-326E-AE28-E288-E04225BAEE77}
Global\{A96A4DDC-804B-3853-E288-E04225BAEE77}
Global\{A96A4DDC-804B-3853-E288-E04225BAEE77}
%Documents and Settings%\%current user%\Application Data\Uxep\oqca.ewe
%Documents and Settings%\%current user%\Application Data\Uxep\oqca.ewe
%Documents and Settings%\%current user%\Application Data\Uxep
%Documents and Settings%\%current user%\Application Data\Uxep
oqca.ewe
oqca.ewe