Gen:Variant.Symmi.39952 (BitDefender), Trojan-Spy.Win32.Zbot.rvqq (Kaspersky), Trojan.Win32.Generic!BT (VIPRE), Gen:Variant.Symmi.39952 (B) (Emsisoft), Artemis!6076135C6245 (McAfee), Gen:Variant.Symmi.39952 (FSecure), Generic35.CIKH (AVG), HEUR_NAMETRICK.A (TrendMicro), GenericInjector.YR, BackdoorCaphaw_QKKBAL.YR, TrojanPSWZbot.YR (Lavasoft MAS)Behaviour: Trojan-Spy, 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: 79fe23a2f9d1faf512a7a3596cbccc01
SHA1: 6d3dff0c88a4192a82fccec2ba3c6d457b8956e2
SHA256: ee50a1335d7719a44acd28868a707da44c2dad9794fbb9128c604d24180afcde
SSDeep: 12288:8krvpmI30FRD3jr7r1TlLny9xrivba3asKefz2mK:8qvpUrTr/1Axcb0areffK
Size: 541243 bytes
File type: EXE
Platform: WIN32
Entropy: Packed
PEID: UPolyXv05_v6
Company: no certificate found
Created at: 2007-03-31 18:09:55
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):
FB_2.tmp.exe:3812
ikruq.exe:3856
%original file name%.exe:3372
Payment.pdf.scr:3408
Ebtsrgfg.exe:1708
Ebtsrgfg.exe:3620
The Backdoor injects its code into the following process(es):
ctfmon.exe:252
File activity
The process FB_2.tmp.exe:3812 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\tmp109523b0.bat (183 bytes)
%Documents and Settings%\%current user%\Application Data\Faibm\ikruq.exe (141 bytes)
The process %original file name%.exe:3372 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\Payment.pdf.scr (22395 bytes)
The Backdoor deletes the following file(s):
%Documents and Settings%\%current user%\Local Settings\Temp\nse1.tmp (0 bytes)
The process Payment.pdf.scr:3408 makes changes in the file system.
The Backdoor creates and/or writes to the following file(s):
%Documents and Settings%\%current user%\Start Menu\Programs\Startup\btsrgfg.vbs (173 bytes)
%Documents and Settings%\%current user%\Application Data\btsrgfg\Ebtsrgfg.bat (78 bytes)
%Documents and Settings%\%current user%\Application Data\btsrgfg\Ebtsrgfg.exe (5873 bytes)
The process Ebtsrgfg.exe:1708 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\FB_3.tmp.exe (3 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\FB_2.tmp.exe (141 bytes)
Registry activity
The process FB_2.tmp.exe:3812 makes changes in the system registry.
The Backdoor creates and/or sets the following values in system registry:
[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "67 0D B3 80 C2 96 C8 A9 CD 71 48 F3 52 BC 3A 69"
[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"AppData" = "%Documents and Settings%\%current user%\Application Data"
[HKCU\Software\Microsoft\Izylyv]
"Cewupafe" = "18 4B 4D BF FA 7D 90 D6 72 08 86 7B A6 B9 39 9E"
The process ctfmon.exe:252 makes changes in the system registry.
The Backdoor creates and/or sets the following values in system registry:
[HKCU\Software\Microsoft\Izylyv]
"Cewupafe" = "18 4B 4D BF FA 7D 90 D6 72 08 86 7B A6 B9 39 9E"
The Backdoor deletes the following value(s) in system registry:
The Backdoor disables automatic startup of the application by deleting the following autorun value:
[HKCU\Software\Microsoft\Windows\CurrentVersion\Run]
"internat.exe"
The process ikruq.exe:3856 makes changes in the system registry.
The Backdoor creates and/or sets the following values in system registry:
[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "50 E6 BB FA A2 D6 EA 8B D2 78 3F 02 F1 DC 86 F4"
[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"AppData" = "%Documents and Settings%\%current user%\Application Data"
The process %original file name%.exe:3372 makes changes in the system registry.
The Backdoor creates and/or sets the following values in system registry:
[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "7F 36 9A 40 78 09 72 85 CF 37 10 29 9E 16 D3 A2"
[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\ShellNoRoam\MUICache\C:\DOCUME~1\"%CurrentUserName%"\LOCALS~1\Temp]
"Payment.pdf.scr" = "UPX executable packer"
[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2\{fdd9f6f2-7454-11e2-b4cd-806d6172696f}]
"BaseClass" = "Drive"
[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 Backdoor modifies IE settings for security zones to map all web-nodes that bypassing proxy to the Intranet Zone:
[HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap]
"ProxyBypass" = "1"
The Backdoor modifies IE settings for security zones to map all urls to the Intranet Zone:
"IntranetName" = "1"
The Backdoor 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 process Payment.pdf.scr:3408 makes changes in the system registry.
The Backdoor creates and/or sets the following values in system registry:
[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "7B B5 D7 19 56 50 19 08 6A B3 85 E8 51 C6 69 8A"
[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"AppData" = "%Documents and Settings%\%current user%\Application Data"
"Startup" = "%Documents and Settings%\%current user%\Start Menu\Programs\Startup"
The process Ebtsrgfg.exe:1708 makes changes in the system registry.
The Backdoor creates and/or sets the following values in system registry:
[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "5A 02 CE B2 96 2B 0C D3 F2 D1 95 F5 D2 A7 AE EE"
[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"
[HKLM\System\CurrentControlSet\Control\Session Manager]
"PendingFileRenameOperations" = "\??\C:\DOCUME~1\"%CurrentUserName%"\LOCALS~1\Temp\,"
[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2\{fdd9f6f2-7454-11e2-b4cd-806d6172696f}]
"BaseClass" = "Drive"
[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\ShellNoRoam\MUICache\C:\DOCUME~1\"%CurrentUserName%"\LOCALS~1\Temp]
"FB_3.tmp.exe" = "FB_3.tmp"
[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"Cookies" = "%Documents and Settings%\%current user%\Cookies"
"Personal" = "%Documents and Settings%\%current user%\My Documents"
[HKCU\Software\Microsoft\Windows\ShellNoRoam\MUICache\C:\DOCUME~1\"%CurrentUserName%"\LOCALS~1\Temp]
"FB_2.tmp.exe" = "FB_2.tmp"
The Backdoor modifies IE settings for security zones to map all web-nodes that bypassing proxy to the Intranet Zone:
[HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap]
"ProxyBypass" = "1"
The Backdoor modifies IE settings for security zones to map all urls to the Intranet Zone:
"IntranetName" = "1"
The Backdoor 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 process Ebtsrgfg.exe:3620 makes changes in the system registry.
The Backdoor creates and/or sets the following values in system registry:
[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "E7 3C 12 71 EF 2B FD B7 52 6C 33 CF EE 8A AF AC"
[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"AppData" = "%Documents and Settings%\%current user%\Application Data"
Network activity (URLs)
URL | IP |
---|---|
hxxp://master-stroi76.ru/ches/serverphp/config.bin | 176.9.59.131 |
hxxp://master-stroi76.ru/cgi-sys/suspendedpage.cgi |
HOSTS file anomalies
No changes have been detected.
Rootkit activity
The Backdoor installs the following user-mode hooks in WININET.dll:
HttpSendRequestExW
HttpSendRequestExA
InternetReadFileExA
HttpSendRequestA
HttpSendRequestW
InternetQueryDataAvailable
InternetCloseHandle
HttpQueryInfoA
InternetReadFile
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):
FB_2.tmp.exe:3812
ikruq.exe:3856
%original file name%.exe:3372
Payment.pdf.scr:3408
Ebtsrgfg.exe:1708
Ebtsrgfg.exe:3620 - Delete the original Backdoor file.
- Delete or disinfect the following files created/modified by the Backdoor:
%Documents and Settings%\%current user%\Local Settings\Temp\tmp109523b0.bat (183 bytes)
%Documents and Settings%\%current user%\Application Data\Faibm\ikruq.exe (141 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\Payment.pdf.scr (22395 bytes)
%Documents and Settings%\%current user%\Start Menu\Programs\Startup\btsrgfg.vbs (173 bytes)
%Documents and Settings%\%current user%\Application Data\btsrgfg\Ebtsrgfg.bat (78 bytes)
%Documents and Settings%\%current user%\Application Data\btsrgfg\Ebtsrgfg.exe (5873 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\FB_3.tmp.exe (3 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\FB_2.tmp.exe (141 bytes) - Clean the Temporary Internet Files folder, which may contain infected files (How to clean Temporary Internet Files folder).
- Reboot the computer.