Trojan.Win32.Inject.azgw (Kaspersky), Gen:Variant.Kazy.290327 (B) (Emsisoft), Gen:Variant.Kazy.290327 (AdAware), Backdoor.Win32.Simbot.FD, BackdoorSimbot.YR (Lavasoft MAS)Behaviour: Trojan, Backdoor
The description has been automatically generated by Lavasoft Malware Analysis System and it may contain incomplete or inaccurate information.
Summary
MD5: 221bffc7fb661eee2848f5d1fa619fe2
SHA1: 03357dd2d2260c4188dafccdbd4fe4b8a4712b93
SHA256: cb2660d9c49bfa8a8e1326d75c273045795b0354ae3b5f1efa92abc2f568a0d6
SSDeep: 768:FfpyoC6o3jjOq AD48hhvb7z8D7Qwk7q:FfEH6Gjz MhV7znm
Size: 27136 bytes
File type: EXE
Platform: WIN32
Entropy: Not Packed
PEID: UPolyXv05_v6
Company: no certificate found
Created at: 2010-12-29 09:37:00
Analyzed on: WindowsXPESX 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):
regedit.exe:1692
%original file name%.exe:604
The Trojan injects its code into the following process(es):
svchost.exe:1056
Mutexes
The following mutexes were created/opened:No objects were found.
File activity
The process %original file name%.exe:604 makes changes in the file system.
The Trojan creates and/or writes to the following file(s):
%Documents and Settings%\%current user%\Application Data\Microsoft\Crypto\RSA\S-1-5-21-1844237615-1960408961-1801674531-1003\c5b88721db08c824db69d0bbc702beb8_75ed9567-aa58-4c8e-a8ea-3cad7c47ab03 (44 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\4$@2.dat (48 bytes)
C:\%original file name%.exe.tmp1 (1257 bytes)
Registry activity
The process regedit.exe:1692 makes changes in the system registry.
The Trojan creates and/or sets the following values in system registry:
[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "CA B0 FD 32 76 9B D1 79 98 34 5B 04 FB B6 9E 74"
To automatically run itself each time Windows is booted, the Trojan adds the following link to its file to the system registry autorun key:
[HKCU\Software\Microsoft\Windows\CurrentVersion\Run]
"hkmsvc" = "%Documents and Settings%\%current user%\Local Settings\hkmsvc.exe"
The process %original file name%.exe:604 makes changes in the system registry.
The Trojan creates and/or sets the following values in system registry:
[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "C0 F5 51 7C 37 A0 DB E5 F5 47 37 5D 4A D3 41 F4"
Dropped PE files
MD5 | File path |
---|---|
ff63418c69d975ddde4ad030b10f1c0a | c:\Documents and Settings\"%CurrentUserName%"\Local Settings\hkmsvc.exe |
HOSTS file anomalies
No changes have been detected.
Rootkit activity
No anomalies have been detected.
Propagation
Removals
Remove it with Ad-Aware
- Click (here) to download and install Ad-Aware Free Antivirus.
- Update the definition files.
- Run a full scan of your computer.
Manual removal*
- Terminate malicious process(es) (How to End a Process With the Task Manager):
regedit.exe:1692
%original file name%.exe:604 - Delete the original Trojan file.
- Delete or disinfect the following files created/modified by the Trojan:
%Documents and Settings%\%current user%\Application Data\Microsoft\Crypto\RSA\S-1-5-21-1844237615-1960408961-1801674531-1003\c5b88721db08c824db69d0bbc702beb8_75ed9567-aa58-4c8e-a8ea-3cad7c47ab03 (44 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\4$@2.dat (48 bytes)
C:\%original file name%.exe.tmp1 (1257 bytes) - Delete the following value(s) in the autorun key (How to Work with System Registry):
[HKCU\Software\Microsoft\Windows\CurrentVersion\Run]
"hkmsvc" = "%Documents and Settings%\%current user%\Local Settings\hkmsvc.exe" - Reboot the computer.
Static Analysis
VersionInfo
Company Name: Adobe Systems, Inc.
Product Name: Flash? Player Installer/Uninstaller
Product Version: 10,1,53,64
Legal Copyright: Copyright ? 1996-2010 Adobe, Inc.
Legal Trademarks: Adobe? Flash? Player
Original Filename: FlashUtil.exe
Internal Name: Adobe? Flash? Player Installer/Uninstaller 10.1
File Version: 10,1,53,64
File Description: Adobe? Flash? Player Installer/Uninstaller 10.1 r53
Comments:
Language: Language Neutral
Company Name: Adobe Systems, Inc.Product Name: Flash? Player Installer/UninstallerProduct Version: 10,1,53,64Legal Copyright: Copyright ? 1996-2010 Adobe, Inc.Legal Trademarks: Adobe? Flash? PlayerOriginal Filename: FlashUtil.exeInternal Name: Adobe? Flash? Player Installer/Uninstaller 10.1File Version: 10,1,53,64File Description: Adobe? Flash? Player Installer/Uninstaller 10.1 r53Comments: Language: Language Neutral
PE Sections
Name | Virtual Address | Virtual Size | Raw Size | Entropy | Section MD5 |
---|---|---|---|---|---|
.text | 4096 | 22760 | 23040 | 5.0922 | ce3767426dc98969f31a4df203d577dc |
.rdata | 28672 | 996 | 1024 | 3.17402 | d214cdade079311d21d114ce97e26661 |
.data | 32768 | 931 | 512 | 2.44587 | b95a1d31ed6091cf0444ad200c808f02 |
.rsrc | 36864 | 1136 | 1536 | 1.84173 | b5ed7b029bc65184d8f3a398fb854e6d |
Dropped from:
Downloaded by:
Similar by SSDeep:
Similar by Lavasoft Polymorphic Checker:
Total found: 1
1999e30185519cb0e0f5d38f466fa195
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
svchost.exe_1056:
.text
.text
`.rdata
`.rdata
@.data
@.data
SSh@C@
SSh@C@
MFC42.DLL
MFC42.DLL
MSVCRT.dll
MSVCRT.dll
_acmdln
_acmdln
WinExec
WinExec
KERNEL32.dll
KERNEL32.dll
USER32.dll
USER32.dll
ADVAPI32.dll
ADVAPI32.dll
HttpQueryInfoA
HttpQueryInfoA
InternetOpenUrlA
InternetOpenUrlA
HttpSendRequestA
HttpSendRequestA
HttpOpenRequestA
HttpOpenRequestA
WININET.dll
WININET.dll
WS2_32.dll
WS2_32.dll
iphlpapi.dll
iphlpapi.dll
SHLWAPI.dll
SHLWAPI.dll
VVV.gov.toh.info
VVV.gov.toh.info
200.115.173.102
200.115.173.102
regedit.exe /s
regedit.exe /s
~dfds3.reg
~dfds3.reg
Windows Registry Editor Version 5.00
Windows Registry Editor Version 5.00
"%s"="%s"
"%s"="%s"
HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Run
HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Run
WinHttp
WinHttp
%s.tmp1
%s.tmp1
4$@2.dat
4$@2.dat
hXXp://%s:%d/%s.php?id=d%s&ext=%s
hXXp://%s:%d/%s.php?id=d%s&ext=%s
/%s.php?id=d%s&ext=%s
/%s.php?id=d%s&ext=%s
hXXp://%s:%d/%s.php?id=d%s
hXXp://%s:%d/%s.php?id=d%s
%c%c%c%c%c
%c%c%c%c%c
/%s.php?id=d%s
/%s.php?id=d%s
%%temp%%\%u
%%temp%%\%u
Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1)
Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1)
Content-Type: application/x-www-form-urlencoded
Content-Type: application/x-www-form-urlencoded
HTTP/1.1
HTTP/1.1
X-X-X-X-X-X
X-X-X-X-X-X
01-01-01-01-01-01
01-01-01-01-01-01
%c%c%c%c%c%c.exe
%c%c%c%c%c%c.exe
svchost.exe_1056_rwx_00400000_00005000:
.text
.text
`.rdata
`.rdata
@.data
@.data
SSh@C@
SSh@C@
MFC42.DLL
MFC42.DLL
MSVCRT.dll
MSVCRT.dll
_acmdln
_acmdln
WinExec
WinExec
KERNEL32.dll
KERNEL32.dll
USER32.dll
USER32.dll
ADVAPI32.dll
ADVAPI32.dll
HttpQueryInfoA
HttpQueryInfoA
InternetOpenUrlA
InternetOpenUrlA
HttpSendRequestA
HttpSendRequestA
HttpOpenRequestA
HttpOpenRequestA
WININET.dll
WININET.dll
WS2_32.dll
WS2_32.dll
iphlpapi.dll
iphlpapi.dll
SHLWAPI.dll
SHLWAPI.dll
VVV.gov.toh.info
VVV.gov.toh.info
200.115.173.102
200.115.173.102
regedit.exe /s
regedit.exe /s
~dfds3.reg
~dfds3.reg
Windows Registry Editor Version 5.00
Windows Registry Editor Version 5.00
"%s"="%s"
"%s"="%s"
HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Run
HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Run
WinHttp
WinHttp
%s.tmp1
%s.tmp1
4$@2.dat
4$@2.dat
hXXp://%s:%d/%s.php?id=d%s&ext=%s
hXXp://%s:%d/%s.php?id=d%s&ext=%s
/%s.php?id=d%s&ext=%s
/%s.php?id=d%s&ext=%s
hXXp://%s:%d/%s.php?id=d%s
hXXp://%s:%d/%s.php?id=d%s
%c%c%c%c%c
%c%c%c%c%c
/%s.php?id=d%s
/%s.php?id=d%s
%%temp%%\%u
%%temp%%\%u
Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1)
Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1)
Content-Type: application/x-www-form-urlencoded
Content-Type: application/x-www-form-urlencoded
HTTP/1.1
HTTP/1.1
X-X-X-X-X-X
X-X-X-X-X-X
01-01-01-01-01-01
01-01-01-01-01-01
%c%c%c%c%c%c.exe
%c%c%c%c%c%c.exe