HEUR:Trojan.Win32.Generic (Kaspersky), Trojan.VIZ.Gen.1 (B) (Emsisoft), Trojan.VIZ.Gen.1 (AdAware), Trojan-PSW.Win32.Zbot.4.FD, GenericInjector.YR (Lavasoft MAS)Behaviour: Trojan-PSW, Trojan
The description has been automatically generated by Lavasoft Malware Analysis System and it may contain incomplete or inaccurate information.
Summary
MD5: a4c9d15c7bdfc4952d7ec53de8bf4141
SHA1: f28fe618abd0aa673599d6ffe033746c5e196218
SHA256: fc1f4836c1bbb2309994c8baf4da3b0a8934a2dcaabbd8562511da14af53c960
SSDeep: 6144:GVcgoUoPgaTOsPffftemyjqqgL9vbEXqZBHu6GzrH:kcgoUoPgaTXf0HjgLxbfDO6
Size: 313856 bytes
File type: EXE
Platform: WIN32
Entropy: Packed
PEID: UPolyXv05_v6
Company: no certificate found
Created at: 2007-04-18 14:23:51
Analyzed on: WindowsXP SP3 32-bit
Summary: Trojan. A program that appears to do one thing but actually does another (a.k.a. Trojan Horse).
Dynamic Analysis
Payload
No specific payload has been found.
Process activity
The Trojan creates the following process(es):
%original file name%.exe:1200
geixsa.exe:1856
The Trojan injects its code into the following process(es):
Explorer.EXE:1572
Mutexes
The following mutexes were created/opened:No objects were found.
File activity
The process %original file name%.exe:1200 makes changes in the file system.
The Trojan creates and/or writes to the following file(s):
%Documents and Settings%\%current user%\Application Data\Ajato\geixsa.exe (1738 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\FJC1EA4.bat (173 bytes)
The process geixsa.exe:1856 makes changes in the file system.
The Trojan creates and/or writes to the following file(s):
%Documents and Settings%\%current user%\NTUSER.DAT.LOG (2400 bytes)
%Documents and Settings%\%current user%\NTUSER.DAT (1436 bytes)
Registry activity
The process %original file name%.exe:1200 makes changes in the system registry.
The Trojan creates and/or sets the following values in system registry:
[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "7E E9 50 62 12 0B 89 71 B5 6F 80 ED 3E 16 C7 FE"
[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"AppData" = "%Documents and Settings%\%current user%\Application Data"
"Local AppData" = "%Documents and Settings%\%current user%\Local Settings\Application Data"
The process geixsa.exe:1856 makes changes in the system registry.
The Trojan creates and/or sets the following values in system registry:
[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "C0 C6 73 7C 47 30 61 C6 6D 15 03 27 85 27 AA 2E"
[HKCU\Software\Microsoft\Puvomob]
"1j650d10" = "mdAMnwU/3pOAI5Zf6/XKJg=="
[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"AppData" = "%Documents and Settings%\%current user%\Application Data"
"Local AppData" = "%Documents and Settings%\%current user%\Local Settings\Application Data"
Dropped PE files
MD5 | File path |
---|---|
4aa1f7ae598fcdef2503c71b72872865 | c:\Documents and Settings\"%CurrentUserName%"\Application Data\Ajato\geixsa.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
InternetWriteFile
InternetWriteFileExA
InternetQueryDataAvailable
HttpQueryInfoW
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:
GetClipboardData
TranslateMessage
The Trojan installs the following user-mode hooks in Secur32.dll:
DecryptMessage
SealMessage
DeleteSecurityContext
The Trojan installs the following user-mode hooks in WS2_32.dll:
WSAGetOverlappedResult
WSASend
recv
gethostbyname
WSARecv
send
closesocket
freeaddrinfo
getaddrinfo
GetAddrInfoW
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:1200
geixsa.exe:1856 - Delete the original Trojan file.
- Delete or disinfect the following files created/modified by the Trojan:
%Documents and Settings%\%current user%\Application Data\Ajato\geixsa.exe (1738 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\FJC1EA4.bat (173 bytes)
%Documents and Settings%\%current user%\NTUSER.DAT.LOG (2400 bytes) - 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 | 16128 | 11264 | 3.35632 | 7cb335bbbf798f4ec0e1702ef73ba6c9 |
.data | 20480 | 20480 | 2560 | 1.42008 | 0f1895e76230055bcaf92f75a2b71893 |
.rdata | 40960 | 294943 | 295936 | 5.51909 | b964b0e2db42250b315ae3f6cb5f131a |
.adata | 339968 | 2848 | 3072 | 0 | d2a70550489de356a2cd6bfc40711204 |
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 connects to the servers at the folowing location(s):
Strings from Dumps
Explorer.EXE_1572_rwx_01EA0000_00049000:
.text
.text
`.data
`.data
.reloc
.reloc
Invalid parameter passed to C runtime function.
Invalid parameter passed to C runtime function.
0123456789
0123456789
6$7,747
6$7,747
gdiplus.dll
gdiplus.dll
GdiplusShutdown
GdiplusShutdown
userenv.dll
userenv.dll
del "%s"
del "%s"
if exist "%s" goto d
if exist "%s" goto d
del /F "%s"
del /F "%s"
HTTP/1.1
HTTP/1.1
RegDeleteKeyExW
RegDeleteKeyExW
>.-0298,>9;{
>.-0298,>9;{
OlzhjkeYLbzlh`t
OlzhjkeYLbzlh`t
7* 37 0&0
7* 37 0&0
* 13.701.
* 13.701.
REPORT
REPORT
hXXp://VVV.google.com/
hXXp://VVV.google.com/
hXXp://VVV.bing.com/
hXXp://VVV.bing.com/
t.Ht$HHt
t.Ht$HHt
m9.td
m9.td
ntdll.dll
ntdll.dll
KERNEL32.dll
KERNEL32.dll
GetKeyboardState
GetKeyboardState
MsgWaitForMultipleObjects
MsgWaitForMultipleObjects
ExitWindowsEx
ExitWindowsEx
USER32.dll
USER32.dll
CryptGetKeyParam
CryptGetKeyParam
CryptImportKey
CryptImportKey
CryptDestroyKey
CryptDestroyKey
RegCreateKeyExW
RegCreateKeyExW
RegQueryInfoKeyW
RegQueryInfoKeyW
RegDeleteKeyW
RegDeleteKeyW
RegOpenKeyExW
RegOpenKeyExW
RegFlushKey
RegFlushKey
RegEnumKeyExW
RegEnumKeyExW
RegCloseKey
RegCloseKey
ADVAPI32.dll
ADVAPI32.dll
PathIsURLW
PathIsURLW
UrlUnescapeA
UrlUnescapeA
SHLWAPI.dll
SHLWAPI.dll
ShellExecuteW
ShellExecuteW
SHELL32.dll
SHELL32.dll
Secur32.dll
Secur32.dll
ole32.dll
ole32.dll
GDI32.dll
GDI32.dll
WS2_32.dll
WS2_32.dll
CertDeleteCertificateFromStore
CertDeleteCertificateFromStore
CertOpenSystemStoreW
CertOpenSystemStoreW
CertCloseStore
CertCloseStore
CertEnumCertificatesInStore
CertEnumCertificatesInStore
CertDuplicateCertificateContext
CertDuplicateCertificateContext
PFXExportCertStoreEx
PFXExportCertStoreEx
PFXImportCertStore
PFXImportCertStore
CRYPT32.dll
CRYPT32.dll
HttpSendRequestExA
HttpSendRequestExA
HttpQueryInfoA
HttpQueryInfoA
InternetCrackUrlA
InternetCrackUrlA
HttpOpenRequestA
HttpOpenRequestA
HttpEndRequestA
HttpEndRequestA
HttpAddRequestHeadersA
HttpAddRequestHeadersA
WININET.dll
WININET.dll
OLEAUT32.dll
OLEAUT32.dll
NETAPI32.dll
NETAPI32.dll
IPHLPAPI.DLL
IPHLPAPI.DLL
VERSION.dll
VERSION.dll
msvcrt.dll
msvcrt.dll
zcÃ
zcÃ
9$9,949
9$9,949
3#3(343{3
3#3(343{3
\StringFileInfo\xx\%s
\StringFileInfo\xx\%s
launchpadshell.exe
launchpadshell.exe
dirclt32.exe
dirclt32.exe
wtng.exe
wtng.exe
prologue.exe
prologue.exe
pcsws.exe
pcsws.exe
fdmaster.exe
fdmaster.exe
kernel32.dll
kernel32.dll
"%s" %s
"%s" %s
/c "%s"
/c "%s"
c.tmp
c.tmp
Wadvapi32.dll
Wadvapi32.dll
shell32.dll
shell32.dll
SOFTWARE\Microsoft\Windows NT\CurrentVersion\ProfileList\%s
SOFTWARE\Microsoft\Windows NT\CurrentVersion\ProfileList\%s
urlmon.dll
urlmon.dll
cabinet.dll
cabinet.dll
%Documents and Settings%\%current user%\Application Data
%Documents and Settings%\%current user%\Application Data
%Documents and Settings%\%current user%\Local Settings\Application Data
%Documents and Settings%\%current user%\Local Settings\Application Data
Global\{3D6E1BE3-083C-4088-F013-F140DE00D252}
Global\{3D6E1BE3-083C-4088-F013-F140DE00D252}