Trojan.Win32.Autoit.cmm (Kaspersky), Trojan.PWS.Panda.4795 (DrWeb), Trojan-FDKL!9CC3B8D74648 (McAfee), WS.Reputation.1 (Symantec), Win32:Trojan-gen (Avast), Trojan.Generic.11169454 (AdAware), 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: 9cc3b8d74648dc23a5d37d0b3b9a3b9c
SHA1: 6374226142ec7895a0f8b5c68f2d175b59dfcc5c
SHA256: ddd2dfc8752b4d9711d99446df0e5d68aedcac3fb8a3bc9e5527612830c33f47
SSDeep: 49152:uJZoQrbTFZY1ia3u9NvecgrW0I1wOqnAfqttmQu6H6:utrbTA1y9UcpqzAyDbBa
Size: 1689841 bytes
File type: EXE
Platform: WIN32
Entropy: Packed
PEID: UPolyXv05_v6
Company: GreenApp
Created at: 2012-01-29 23:32:28
Analyzed on: WindowsXP SP3 32-bit
Summary: Backdoor. Malware that enables a remote control of victim's machine.
Dynamic Analysis
Payload
No specific payload has been found.
Process activity
The Backdoor creates the following process(es):
%original file name%.exe:464
%original file name%.exe:1720
ehzyu.exe:1560
ehzyu.exe:544
The Backdoor injects its code into the following process(es):
Explorer.EXE:128
File activity
The process %original file name%.exe:464 makes changes in the file system.
The Backdoor creates and/or writes to the following file(s):
%Documents and Settings%\%current user%\Local Settings\Temp\tmpa53e4c54.bat (177 bytes)
%Documents and Settings%\%current user%\Application Data\Peecen\ehzyu.exe (9606 bytes)
Registry activity
The process %original file name%.exe:464 makes changes in the system registry.
The Backdoor creates and/or sets the following values in system registry:
[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "33 F8 DA 2F F0 3B C2 3A 49 0B 51 B1 50 E1 1B AB"
[HKCU\Software\Microsoft\Myav]
"Gywuasi" = "96 C7 6F DF A0 78 41 43 2D C1 55 71 C9 70 C9 85"
[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"AppData" = "%Documents and Settings%\%current user%\Application Data"
The process %original file name%.exe:1720 makes changes in the system registry.
The Backdoor creates and/or sets the following values in system registry:
[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "09 28 77 97 3E 12 4E 8E 56 53 DD 2F D0 16 7D 29"
[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2\{c155cd73-744b-11e2-8294-806d6172696f}]
"BaseClass" = "Drive"
[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"Desktop" = "%Documents and Settings%\%current user%\Desktop"
[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2\{c155cd72-744b-11e2-8294-806d6172696f}]
"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\MountPoints2\{b98117e8-75ca-11e2-81b2-000c293708fb}]
"BaseClass" = "Drive"
[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"AppData" = "%Documents and Settings%\%current user%\Application Data"
[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"Common Desktop" = "%Documents and Settings%\All Users\Desktop"
[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2\{c155cd75-744b-11e2-8294-806d6172696f}]
"BaseClass" = "Drive"
[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"Favorites" = "%Documents and Settings%\%current user%\Favorites"
The process ehzyu.exe:1560 makes changes in the system registry.
The Backdoor creates and/or sets the following values in system registry:
[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "AA 64 A3 8E 90 6F DA 22 60 16 84 00 1A 1C EE 07"
[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2\{c155cd73-744b-11e2-8294-806d6172696f}]
"BaseClass" = "Drive"
[HKCU\Software\Microsoft\Myav]
"Gywuasi" = "96 C7 6F DF A0 78 41 43 2D C1 55 71 C9 70 C9 85"
[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"Desktop" = "%Documents and Settings%\%current user%\Desktop"
[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2\{c155cd72-744b-11e2-8294-806d6172696f}]
"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\MountPoints2\{b98117e8-75ca-11e2-81b2-000c293708fb}]
"BaseClass" = "Drive"
[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"AppData" = "%Documents and Settings%\%current user%\Application Data"
[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"Common Desktop" = "%Documents and Settings%\All Users\Desktop"
[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2\{c155cd75-744b-11e2-8294-806d6172696f}]
"BaseClass" = "Drive"
[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"Favorites" = "%Documents and Settings%\%current user%\Favorites"
The process ehzyu.exe:544 makes changes in the system registry.
The Backdoor creates and/or sets the following values in system registry:
[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "AA 35 4A 7A C0 E2 4E 67 84 13 4D 7E 33 B6 80 46"
[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"AppData" = "%Documents and Settings%\%current user%\Application Data"
Dropped PE files
MD5 | File path |
---|---|
c0a3593ec6d028aec3939f69338f47c4 | c:\Documents and Settings\"%CurrentUserName%"\Application Data\Peecen\ehzyu.exe |
HOSTS file anomalies
No changes have been detected.
Rootkit activity
The Backdoor installs the following user-mode hooks in WININET.dll:
HttpSendRequestExA
HttpSendRequestW
InternetReadFileExA
InternetQueryDataAvailable
HttpSendRequestExW
InternetReadFile
HttpQueryInfoA
HttpSendRequestA
InternetCloseHandle
The Backdoor installs the following user-mode hooks in CRYPT32.dll:
PFXImportCertStore
The Backdoor 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 Backdoor installs the following user-mode hooks in WS2_32.dll:
WSASend
send
closesocket
The Backdoor installs the following user-mode hooks in kernel32.dll:
GetFileAttributesExW
The Backdoor 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:464
%original file name%.exe:1720
ehzyu.exe:1560
ehzyu.exe:544 - Delete the original Backdoor file.
- Delete or disinfect the following files created/modified by the Backdoor:
%Documents and Settings%\%current user%\Local Settings\Temp\tmpa53e4c54.bat (177 bytes)
%Documents and Settings%\%current user%\Application Data\Peecen\ehzyu.exe (9606 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
Company Name: I81MA82IO78X
Product Name: J90ZW84UC90E
Product Version: 1,0,0,0
Legal Copyright: V68RN81JF89L
Legal Trademarks:
Original Filename: O83ZN66DR86F
Internal Name:
File Version: R88FI78AY77M
File Description: W81RK75MS73S
Comments:
Language: Language Neutral
Company Name: I81MA82IO78XProduct Name: J90ZW84UC90EProduct Version: 1,0,0,0Legal Copyright: V68RN81JF89LLegal Trademarks: Original Filename: O83ZN66DR86FInternal Name: File Version: R88FI78AY77MFile Description: W81RK75MS73SComments: Language: Language Neutral
PE Sections
Name | Virtual Address | Virtual Size | Raw Size | Entropy | Section MD5 |
---|---|---|---|---|---|
.text | 4096 | 525852 | 526336 | 4.63347 | 61ffce4768976fa0dd2a8f6a97b1417a |
.rdata | 532480 | 57280 | 57344 | 3.32693 | 0354bc5f2376b5e9a4a3ba38b682dff1 |
.data | 589824 | 108376 | 26624 | 1.49032 | 8033f5a38941b4685bc2299e78f31221 |
.rsrc | 700416 | 46732 | 47104 | 3.64509 | 3f9b11a0e169a4a8635c29bc1bdadbf2 |
Dropped from:
Downloaded by:
Similar by SSDeep:
Similar by Lavasoft Polymorphic Checker:
Network Activity
URLs
URL | IP |
---|---|
hxxp://231cool.com/salein/admin/ppptp.jpg | 192.154.110.242 |
IDS verdicts (Suricata alerts: Emerging Threats ET ruleset)
Traffic
GET /salein/admin/ppptp.jpg 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: 231cool.com
Cache-Control: no-cache
HTTP/1.1 200 OK
Date: Thu, 10 Apr 2014 05:17:39 GMT
Server: Apache/2.2.25 (Unix) mod_ssl/2.2.25 OpenSSL/0.9.8e-fips-rhel5 mod_bwlimited/1.4
Last-Modified: Tue, 01 Apr 2014 21:47:58 GMT
ETag: "58818b-1c608-4f6021f0a9f80"
Accept-Ranges: bytes
Content-Length: 116232
Connection: close
Content-Type: image/jpeg
.H.x.....!'....V.l...... ...L-..Q.T...KT...NX.J.....T>;..5.x`....D'V.?h....W.......`..H7b.c]......_..peo........l1z..14u.......gw...*.B...2.U.y|*.%.H......\.......,.,P.....Fg.i........o^R6.....Y."].*.:....J...Y......7...f...j.p.-.7...c_y.....p.".].t.C-...uZ.j... ..P.E..M..\.......W.Er.5.!....7.j.bo#1......': ..p.^..4.....q.!....r..lt..]gj9s.....>.y.i.}.'....4..<....O../...........L..\.|.[."h.j..h#l@....4..V69..D.y.E...z........W....\....g`....8..1'5.G..(....Zf.Y........y..........&o^.M[U.....,r.mQT.}...wY.p..X.w......G...`..7.GO..l......o...X....} .W...L#"g._|.o...qB..oNS.$...Q....a..".3fPy...{......$..|_.M.r.%..6..Do.FQ../.D.ZONUo51.V......w.B.......n..(.......K..*8....f........y...8...;..g....|.%L.q..?;.. 4.5l.h..U]..&....."|...9..#..b.<..5.1..M...|..5...Q..v.....D.........U..lK.[.........}-.[.....%~.....;...W.n...m.?..<.d...l..O...z.......P.BN@.=..c.A|.......i.WAt.........n8^..7,....>.....,7.....0..T|y............0._.......e/...^@....\....s.Ob.[wA..Ur.."..\....E2.9.u.,.fXy..<.......%....]:......RF..&..b?@f.5...i2m[2bk..4<......;..:....a.0...q...2....4..H....9h..n..q...>..;........M...q`.`..k.hM..pE.....g.h.1W./...o...Ied6 8!Z...g.v..i.......n'...x...T1P....V~...~P..7.$X.].S......a...)..*..kW.$.n....id..m7...O.*...[!B..:...7L..e.]!...M.xS5g.2.Q...>T..?..._%...~.4.........C.1.=....xtGb...5.C*.ZQS5l..>.=I.!..pQ.gao....bq....{Ga1..>8...kp..3'.4.B.2.H...).[...sY...i..........:.......OE.k..j?U...?l...c%4`ZU~UGz#V,.....J..)&...B..KktE..l=E...t...G;..l....../.r.].!.......7U.....4.
<<
<<< skipped >>>
Map
Strings from Dumps
Explorer.EXE_128_rwx_01880000_00027000:
.text
.text
`.data
`.data
.reloc
.reloc
PR_OpenTCPSocket
PR_OpenTCPSocket
http://www.google.com/webhp
http://www.google.com/webhp
gdiplus.dll
gdiplus.dll
GdiplusShutdown
GdiplusShutdown
ole32.dll
ole32.dll
gdi32.dll
gdi32.dll
<;.8("9`%,/
<;.8("9`%,/
,127!' ./9
,127!' ./9
5/ -?9/#$
5/ -?9/#$
./.-#**:
./.-#**:
6 !26!1'1
6 !26!1'1
7"52),,>
7"52),,>
, >(3=2;
, >(3=2;
<7!="?):
<7!="?):
&;1"&1!7!1
&;1"&1!7!1
;1 "?&! ?
;1 "?&! ?
c,%udcvpdxv ~iydjGBT\YGmTRL[ZMI_
c,%udcvpdxv ~iydjGBT\YGmTRL[ZMI_
7.>.3; `
7.>.3; `
1:,0/2$7
1:,0/2$7
?$6 39 ~
?$6 39 ~
HTTP/1.1
HTTP/1.1
http://
http://
https://
https://
HTTP/1.
HTTP/1.
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
SSShlD
SSShlD
GetProcessHeap
GetProcessHeap
KERNEL32.dll
KERNEL32.dll
ExitWindowsEx
ExitWindowsEx
OpenWindowStationW
OpenWindowStationW
GetProcessWindowStation
GetProcessWindowStation
CreateWindowStationW
CreateWindowStationW
CloseWindowStation
CloseWindowStation
SetProcessWindowStation
SetProcessWindowStation
GetKeyboardState
GetKeyboardState
MapVirtualKeyW
MapVirtualKeyW
SetKeyboardState
SetKeyboardState
MsgWaitForMultipleObjects
MsgWaitForMultipleObjects
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
G'%d#a
G'%d#a
>">->3>?>
>">->3>?>
5S5C5N5Z5
5S5C5N5Z5
nspr4.dll
nspr4.dll
cGlobal\XXX
cGlobal\XXX
SysShadow
SysShadow
e.dat
e.dat
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\Orra\xuzao.xua
%Documents and Settings%\%current user%\Application Data\Orra\xuzao.xua
%Documents and Settings%\%current user%\Application Data\Orra
%Documents and Settings%\%current user%\Application Data\Orra
xuzao.xua
xuzao.xua
Global\{09A9BAE5-9F8D-3BBC-1572-5B360B7E8651}
Global\{09A9BAE5-9F8D-3BBC-1572-5B360B7E8651}
%Documents and Settings%\%current user%\Application Data
%Documents and Settings%\%current user%\Application Data
{9FD208C0-2DA8-ADC7-1572-5B360B7E8651}
{9FD208C0-2DA8-ADC7-1572-5B360B7E8651}