MD5: dcb67a539af43913e2e4bec9ba658c22
SHA1: 432dde771b8502338b4e24f067d6b785f633d5dd
SHA256: 02b20aaad6f2763e76d212e34ba86b71b7772f09fefd7f72589b2c16b9851a43
SSDeep: 384:bAmt53ZsCQ4P GhplI 22rL7bJ0qLPXa0w1X jv9LLaPabo:bJHsCJ Ghg 22rL7bJ0qLPXa0NjF5s
Size: 21212 bytes
File type: EXE
Platform: WIN32
Entropy: Not Packed
PEID: UPolyXv05_v6
Company:
Created at: 2003-09-15 20:42:09
Analyzed on: WindowsXP SP3 32-bit

Summary:

Trojan-PSW. Trojan program intended for stealing users passwords.

Payload

No specific payload has been found.

Process activity

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

budha.exe:3012
kilf.exe:3980
dasu.exe:1692
%original file name%.exe:2856

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 budha.exe:3012 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\Temporary Internet Files\Content.IE5\OVYHJBCC\profile_main[1].exe (1694 bytes)
%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\desktop.ini (67 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\TarB3.tmp (2712 bytes)
%Documents and Settings%\%current user%\Application Data\Microsoft\CryptnetUrlCache\MetaData\2BF68F4714092295550497DD56F57004 (408 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\CabB2.tmp (54 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\TarB5.tmp (2712 bytes)
%Documents and Settings%\%current user%\Application Data\Microsoft\CryptnetUrlCache\Content\2BF68F4714092295550497DD56F57004 (18 bytes)
%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\OVYHJBCC\desktop.ini (67 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\CabB4.tmp (54 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\kilf.exe (1694 bytes)

The Trojan-PSW deletes the following file(s):

%Documents and Settings%\%current user%\Local Settings\Temp\CabB4.tmp (0 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\CabB2.tmp (0 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\TarB3.tmp (0 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\TarB5.tmp (0 bytes)

The process kilf.exe:3980 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\Hyaqe\dasu.exe (2734 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\VOA7720.bat (171 bytes)

The process dasu.exe:1692 makes changes in the file system.
The Trojan-PSW creates and/or writes to the following file(s):

%Documents and Settings%\%current user%\ntuser.dat.LOG (5592 bytes)
%Documents and Settings%\%current user%\NTUSER.DAT (4788 bytes)

The process %original file name%.exe:2856 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\budha.exe (21 bytes)

Registry activity

The process budha.exe:3012 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" = "14 B9 3D DB 25 F3 BB A6 4B 55 B3 2B 95 F7 53 B1"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2\{fdd9f6f3-7454-11e2-b4cd-806d6172696f}]
"BaseClass" = "Drive"

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

[HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap]
"AutoDetect" = "1"
[HKCU\Software\Microsoft\Windows\ShellNoRoam\MUICache\C:\DOCUME~1\"%CurrentUserName%"\LOCALS~1\Temp]
"kilf.exe" = "Administrations und Wartungsprogramm fur SQLite Datenbankdateien"

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

[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"

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

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

[HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections]
"SavedLegacySettings" = "46 00 00 00 41 00 00 00 01 00 00 00 00 00 00 00"

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

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

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

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"

Proxy settings are disabled:

[HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings]
"ProxyEnable" = "0"

The Trojan-PSW deletes the following value(s) in system registry:

[HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings]
"AutoConfigURL"
"ProxyServer"
"ProxyOverride"

The process kilf.exe:3980 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" = "44 50 58 17 37 31 ED A4 43 B4 4B B4 E8 C9 A0 D9"

[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 dasu.exe:1692 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" = "93 AE ED A6 DE B8 9F 44 26 AA 2E 27 08 EE 06 0D"

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

[HKCU\Software\Microsoft\Wyufhoefbiab]
"2h7af223" = "ggbUhRd1PpWf2Q==獹$"

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

The process %original file name%.exe:2856 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" = "1E C3 A3 A3 61 A1 6A 2A 30 88 9D C9 46 C2 A0 F1"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2\{fdd9f6f3-7454-11e2-b4cd-806d6172696f}]
"BaseClass" = "Drive"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap]
"AutoDetect" = "1"

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

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

[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\Windows\ShellNoRoam\MUICache\C:\DOCUME~1\"%CurrentUserName%"\LOCALS~1\Temp]
"budha.exe" = "budha"

[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"

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

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

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 urls to the Intranet Zone:

"IntranetName" = "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"

Dropped PE files

HOSTS file anomalies

No changes have been detected.

Rootkit activity

The Trojan-PSW installs the following user-mode hooks in WININET.dll:

HttpSendRequestExW
HttpSendRequestExA
InternetWriteFile
InternetReadFileExA
InternetReadFileExW
HttpSendRequestA
HttpSendRequestW
InternetQueryDataAvailable
HttpQueryInfoW
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:

GetClipboardData
TranslateMessage

The Trojan-PSW installs the following user-mode hooks in Secur32.dll:

UnsealMessage
SealMessage
DeleteSecurityContext

The Trojan-PSW installs the following user-mode hooks in WS2_32.dll:

WSAGetOverlappedResult
WSASend
recv
gethostbyname
WSARecv
send
closesocket
freeaddrinfo
getaddrinfo
GetAddrInfoW

The Trojan-PSW installs the following user-mode hooks in ntdll.dll:

LdrLoadDll
NtCreateThread

Propagation

VersionInfo

No information is available.

PE Sections

Dropped from:

Downloaded by:

Similar by SSDeep:

Similar by Lavasoft Polymorphic Checker:

Total found: 112
443ac8b40c16da3dddd8fde4e79583f4
ad282ed208a2d7f209250d9352c019cb
cf2ff9c9aa166241c71b70e9b273c2fa
6eeab38a66bdad7e74620b3bb7e2e2d4
ef00ebd83619981bb723ecca9e9bd12f
ca886b3281d6101221fa46fa1cbbafbb
b84c780fd81f8ed76232cdd373e6f1ce
a04291a2e50eb3b21f49e864abd24fa9
b1a14a3682ee83af0dfeb6de5e57493e
d034cb955d5030b4efbf73b0414e7f2e
d4cdcd1479acce93f3e6e90994693e39
d57df59ee627e452018a2494463fc41f
bcf6888054e2f379fbfd83d66a68c8a1
b45657e95311ab4a0d09d61049992c2f
d56ed696fa61b976f1666c2a25b29793
c0c0a9f37dae7bafc1eb553a096e319e
db494490e1b2fa67fc0355637e5ef4ba
cd2ca8db18fb5125d67945ba6d19eb21
c59c9e1e23b88998aaaab752e496ff6e
b3d7f2882f5bc72f551311a7969cb8f6
af30768ff92488278c8f34cb0950fed9
ac2471c932b5a12b630cf95f27012741
a7ad11374e88cc4684008773f353e24c
db60c5acc635f457069fc437704b7c14
d49b2a36223ac79149389ef726088a9a

URLs

URL	IP
hxxp://a26.d.akamai.net/msdownload/update/v3/static/trustedr/en/authrootseq.txt
hxxp://www.download.windowsupdate.com/msdownload/update/v3/static/trustedr/en/authrootseq.txt	72.247.8.51
robotvacuumhut.com	38.99.254.69

IDS verdicts (Suricata alerts: Emerging Threats ET ruleset)

Traffic

GET /msdownload/update/v3/static/trustedr/en/authrootseq.txt HTTP/1.1

Accept: */*

User-Agent: Microsoft-CryptoAPI/5.131.2600.5512

Host: VVV.download.windowsupdate.com

Connection: Keep-Alive

Cache-Control: no-cache

Pragma: no-cache

HTTP/1.1 200 OK

Content-Type: text/plain

Last-Modified: Wed, 12 Mar 2014 05:29:31 GMT

Accept-Ranges: bytes

ETag: "806f4cbb43dcf1:0"

Server: Microsoft-IIS/7.5

X-Powered-By: ASP.NET

Content-Length: 18

Cache-Control: max-age=10675

Date: Sat, 28 Jun 2014 08:11:43 GMT

Connection: keep-alive

X-CCC: CA

X-CID: 2
1401CF3DB40B609892HTTP/1.1 200 OK..Content-Type: text/plain..Last-Modi
fied: Wed, 12 Mar 2014 05:29:31 GMT..Accept-Ranges: bytes..ETag: "806f
4cbb43dcf1:0"..Server: Microsoft-IIS/7.5..X-Powered-By: ASP.NET..Conte
nt-Length: 18..Cache-Control: max-age=10675..Date: Sat, 28 Jun 2014 08
:11:43 GMT..Connection: keep-alive..X-CCC: CA..X-CID: 2..1401CF3DB40B6
09892..

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

.text

`.data

.reloc

Invalid parameter passed to C runtime function.

)"4(7*
!*< ?"4'
0123456789
userenv.dll
del "%s"
if exist "%s" goto d
del /F "%s"
http://www.google.com/
http://www.bing.com/
REPORT
gdiplus.dll
GdiplusShutdown
RegDeleteKeyExW
HTTP/1.1
m9.td
t.Ht$HHt
ntdll.dll
KERNEL32.dll
ExitWindowsEx
MsgWaitForMultipleObjects
GetKeyboardState
USER32.dll
CryptGetKeyParam
CryptImportKey
CryptDestroyKey
RegCreateKeyExW
RegCloseKey
RegQueryInfoKeyW
RegDeleteKeyW
RegOpenKeyExW
RegFlushKey
RegEnumKeyExW
ADVAPI32.dll
PathIsURLW
UrlUnescapeA
SHLWAPI.dll
ShellExecuteW
SHELL32.dll
Secur32.dll
ole32.dll
GDI32.dll
WS2_32.dll
PFXImportCertStore
CertDeleteCertificateFromStore
CertOpenSystemStoreW
CertCloseStore
CertEnumCertificatesInStore
CertDuplicateCertificateContext
PFXExportCertStoreEx
CRYPT32.dll
HttpSendRequestExA
HttpQueryInfoA
InternetCrackUrlA
HttpOpenRequestA
HttpEndRequestA
HttpAddRequestHeadersA
WININET.dll
OLEAUT32.dll
NETAPI32.dll
IPHLPAPI.DLL
VERSION.dll
msvcrt.dll
zcÁ
: :$:(:,:0:4:
7!7%7)7-7175797
4-5}5
:":(:3:9:
SOFTWARE\Microsoft\Windows NT\CurrentVersion\ProfileList\%s
"%s" %s
/c "%s"
kernel32.dll
urlmon.dll
launchpadshell.exe
dirclt32.exe
wtng.exe
prologue.exe
pcsws.exe
fdmaster.exe
shell32.dll
\StringFileInfo\xx\%s
cabinet.dll
Wadvapi32.dll
%Documents and Settings%\%current user%\Application Data
%Documents and Settings%\%current user%\Local Settings\Application Data
Global\{01E22063-0823-4088-6532-C4CE7D78E7DC}

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):
   

   budha.exe:3012
   kilf.exe:3980
   dasu.exe:1692
   %original file name%.exe:2856
   

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%\Local Settings\Temporary Internet Files\Content.IE5\OVYHJBCC\profile_main[1].exe (1694 bytes)
   %Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\desktop.ini (67 bytes)
   %Documents and Settings%\%current user%\Local Settings\Temp\TarB3.tmp (2712 bytes)
   %Documents and Settings%\%current user%\Application Data\Microsoft\CryptnetUrlCache\MetaData\2BF68F4714092295550497DD56F57004 (408 bytes)
   %Documents and Settings%\%current user%\Local Settings\Temp\CabB2.tmp (54 bytes)
   %Documents and Settings%\%current user%\Local Settings\Temp\TarB5.tmp (2712 bytes)
   %Documents and Settings%\%current user%\Application Data\Microsoft\CryptnetUrlCache\Content\2BF68F4714092295550497DD56F57004 (18 bytes)
   %Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\OVYHJBCC\desktop.ini (67 bytes)
   %Documents and Settings%\%current user%\Local Settings\Temp\CabB4.tmp (54 bytes)
   %Documents and Settings%\%current user%\Local Settings\Temp\kilf.exe (1694 bytes)
   %Documents and Settings%\%current user%\Application Data\Hyaqe\dasu.exe (2734 bytes)
   %Documents and Settings%\%current user%\Local Settings\Temp\VOA7720.bat (171 bytes)
   %Documents and Settings%\%current user%\ntuser.dat.LOG (5592 bytes)
   %Documents and Settings%\%current user%\NTUSER.DAT (4788 bytes)
   %Documents and Settings%\%current user%\Local Settings\Temp\budha.exe (21 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.