Trojan.Win32.Badur.fzji (Kaspersky), Trojan.Win32.Kryptik.mwe (v) (VIPRE), Backdoor.Win32.Kelihos.FD, mzpefinder_pcap_file.YR, GenericInjector.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: 94416b090436f967d3d6fbbc9aa181fc
SHA1: 417717e35b8f1bf48ca9124236c71c68a87ecd56
SHA256: a463072e07f132a50c84c0065378798daefd3d48c03389d852d509757973c50c
SSDeep: 384:2U8xB9ZowPHtlBc7OskDUBPDgd4crNWxNrq4nZ r:2NEWH0X2UALgxN7ngr
Size: 27665 bytes
File type: EXE
Platform: WIN32
Entropy: Not Packed
PEID: UPolyXv05_v6
Company: no certificate found
Created at: 2013-08-20 01:44:55
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):
Reader_sl.exe:1064
wuauclt.exe:344
ntvdm.exe:1864
%original file name%.exe:376
jusched.exe:1056
The Backdoor injects its code into the following process(es):
temp241124419.exe:1764
File activity
The process wuauclt.exe:344 makes changes in the file system.
The Backdoor creates and/or writes to the following file(s):
%WinDir%\SoftwareDistribution\DataStore\Logs\edb.chk (100 bytes)
%WinDir%\SoftwareDistribution\DataStore\Logs\edb.log (3576 bytes)
%WinDir%\SoftwareDistribution\DataStore\DataStore.edb (100 bytes)
The Backdoor deletes the following file(s):
%WinDir%\SoftwareDistribution\DataStore\Logs\tmp.edb (0 bytes)
The process temp241124419.exe:1764 makes changes in the file system.
The Backdoor deletes the following file(s):
%Documents and Settings%\%current user%\Local Settings\Temp\tmp.exe (0 bytes)
The process ntvdm.exe:1864 makes changes in the file system.
The Backdoor creates and/or writes to the following file(s):
%Program Files%\Java\jre6\lib (12 bytes)
%Program Files%\Java\jre6\lib\ext (4 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\wireshark.txt (995 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\test.pml (2321 bytes)
%Documents and Settings%\%current user% (4 bytes)
%WinDir%\Temp\scs1.tmp (33880 bytes)
%WinDir%\Temp\Perflib_Perfdata_7b0.dat (4 bytes)
%Program Files%\Java\jre6\lib\fonts (4 bytes)
%Program Files%\Java\jre6\lib\zi (4 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp (4 bytes)
%Program Files%\Wireshark (96 bytes)
%Program Files%\Java\jre6\lib\security (4 bytes)
%WinDir% (672 bytes)
C:\$Directory (16 bytes)
%Documents and Settings%\%current user%\Local Settings (4 bytes)
%WinDir%\Temp\scs2.tmp (10145 bytes)
%System% (1920 bytes)
The Backdoor deletes the following file(s):
%WinDir%\Temp\scs1.tmp (0 bytes)
%WinDir%\Temp\scs2.tmp (0 bytes)
The process %original file name%.exe:376 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\temp3371987840.exe (3913 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\temp241124419.exe (3913 bytes)
The process jusched.exe:1056 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\jusched.log (347 bytes)
Registry activity
The process Reader_sl.exe:1064 makes changes in the system registry.
The Backdoor creates and/or sets the following values in system registry:
[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2\{c155cd73-744b-11e2-8294-806d6172696f}]
"BaseClass" = "Drive"
[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"AppData" = "%Documents and Settings%\%current user%\Application Data"
[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2\{c155cd72-744b-11e2-8294-806d6172696f}]
"BaseClass" = "Drive"
[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2\{b98117e8-75ca-11e2-81b2-000c293708fb}]
"BaseClass" = "Drive"
[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2\{c155cd75-744b-11e2-8294-806d6172696f}]
"BaseClass" = "Drive"
The process temp241124419.exe:1764 makes changes in the system registry.
The Backdoor creates and/or sets the following values in system registry:
[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "38 F4 96 56 5D 04 36 EA F6 57 06 7E 09 7A 22 37"
[HKCU\Software\Microsoft\Notepad]
"sizeCompletedValid" = "DOb5Qg/Mxblvz16dTB/G1rGyYWuQUigK8mfETlefaElK5ALW zd8L1i5a/VnkNf Qg=="
[HKCU\Software\Sysinternals\Process Monitor]
"UrlEnabledUse" = "80"
[HKLM\System\CurrentControlSet\Services\nm\Parameters]
"EnableStationQueries" = "1"
"ComputerName" = "XP8"
[HKCU\Software\Microsoft\Notepad]
"infoPlayedCurrent" = "00 00 00 00 00 00 00 00"
[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"Local AppData" = "%Documents and Settings%\%current user%\Local Settings\Application Data"
[HKCU\Software\Microsoft\Internet Explorer\Main]
"DBSavedUse" = "A2 49 4D F3 D9 1E 9F 88 01 01 08 6A 00 03 CD 04"
[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"Common AppData" = "%Documents and Settings%\All Users\Application Data"
[HKCU\Software\Sysinternals\Process Monitor]
"FlagsModifiedValid" = "00 00 00 00 00 00 00 00"
[HKCU\Software\Microsoft\Notepad]
"styleModifiedPrev" = "80"
[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"AppData" = "%Documents and Settings%\%current user%\Application Data"
[HKCU\Software\Microsoft\Internet Explorer\Main]
"PlatformCompressedValid" = "00 00 00 00 00 00 00 00"
"PersistentLocalizedName" = "24 80 F9 7F 7A 40 0A 61 B2 E7 08 0A EB CE 61 00"
[HKCU\Software\Sysinternals\Process Monitor]
"DefaultCompressedRecord" = "24 80 F9 7F 73 66 3D 27 15 38 BB D0 37 8E 6B 97"
[HKCU\Software\Microsoft\Notepad]
"activeModifiedTheme" = "24 80 F9 7F 87 72 16 11 F5 99 E8 77 63 61 FF 30"
[HKCU\Software\Microsoft\Internet Explorer\Main]
"RecordEnabledCheck" = "80"
[HKCU\Software\Sysinternals\Process Monitor]
"RecordModifiedMax" = "DOb5Qg/Mxblvz16dTB/G1rGyYWuQUigK8mfETlefaElK5ALW zd8L1i5a/VnkNf Qg=="
[HKLM\System\CurrentControlSet\Services\nm\Parameters]
"UserName" = "%CurrentUserName%"
[HKCU\Software\Microsoft\Internet Explorer\Main]
"LineLoadedQuick" = "DOb5Qg/Mxblvz16dTB/G1rGyYWuQUigK8mfETlefaElK5ALW zd8L1i5a/VnkNf Qg=="
To automatically run itself each time Windows is booted, the Backdoor adds the following link to its file to the system registry autorun key:
[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run]
"NetworkUpdater" = "C:\DOCUME~1\"%CurrentUserName%"\LOCALS~1\Temp\temp241124419.exe"
The process %original file name%.exe:376 makes changes in the system registry.
The Backdoor creates and/or sets the following values in system registry:
[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "60 1E B0 43 D8 0F D3 00 B0 22 F7 86 2E 38 64 BF"
Network activity (URLs)
URL | IP |
---|---|
hxxp://37.49.225.226/mod1/yanicha.exe (Malicious) | |
hxxp://122.255.203.213/mod2/yanicha.exe (Malicious) |
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):
wuauclt.exe:344
ntvdm.exe:1864
%original file name%.exe:376 - Delete the original Backdoor file.
- Delete or disinfect the following files created/modified by the Backdoor:
%WinDir%\SoftwareDistribution\DataStore\Logs\edb.chk (100 bytes)
%WinDir%\SoftwareDistribution\DataStore\Logs\edb.log (3576 bytes)
%WinDir%\SoftwareDistribution\DataStore\DataStore.edb (100 bytes)
%Program Files%\Java\jre6\lib (12 bytes)
%Program Files%\Java\jre6\lib\ext (4 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\wireshark.txt (995 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\test.pml (2321 bytes)
%WinDir%\Temp\scs1.tmp (33880 bytes)
%WinDir%\Temp\Perflib_Perfdata_7b0.dat (4 bytes)
%Program Files%\Java\jre6\lib\fonts (4 bytes)
%Program Files%\Java\jre6\lib\zi (4 bytes)
%Program Files%\Wireshark (96 bytes)
%Program Files%\Java\jre6\lib\security (4 bytes)
C:\$Directory (16 bytes)
%WinDir%\Temp\scs2.tmp (10145 bytes)
%System% (1920 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\temp3371987840.exe (3913 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\temp241124419.exe (3913 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\jusched.log (347 bytes) - Delete the following value(s) in the autorun key (How to Work with System Registry):
[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run]
"NetworkUpdater" = "C:\DOCUME~1\"%CurrentUserName%"\LOCALS~1\Temp\temp241124419.exe" - Clean the Temporary Internet Files folder, which may contain infected files (How to clean Temporary Internet Files folder).
- Reboot the computer.