Backdoor.Win32.Cycbot_e7f459fc7d

by malwarelabrobot on August 19th, 2013 in Malware Descriptions.

Trojan.Win32.FraudPack.czuc (Kaspersky), Backdoor.Win32.Cycbot.ga (v) (VIPRE), Trojan.Win32.FakeAV!IK (Emsisoft), Backdoor.Win32.Cycbot.FD, Trojan.Win32.Alureon.FD, Trojan.Win32.Swrort.3.FD, BackdoorCycbot.YR (Lavasoft MAS)
Behaviour: Trojan, Backdoor, Fake-AV


The description has been automatically generated by Lavasoft Malware Analysis System and it may contain incomplete or inaccurate information.

Summary
Technical Details
Removal Recommendations

MD5: e7f459fc7deeb5ad5b48bfe7c1b13fb3
SHA1: 9c81d4c3ebf438bc235b48fa486f285e8ff96101
SHA256: 5fa57d5cec7fded68b5ada4bf153973829f5c522e91000f4b7d5010b99cc56eb
SSDeep: 6144:l25lG0GTiZ4xaDqXWJIJHqSOIxnAtkAeVyCjawyOZyR:a8FTiZ4RXWJ4qSOIxu sKyR
Size: 292864 bytes
File type: EXE
Platform: WIN32
Entropy: Packed
PEID: UPolyXv05_v6
Company: StarApp
Created at: 2005-09-14 08:39:24


Summary:

Backdoor. Malware that enables a remote control of victim's machine.

Payload

No specific payload has been found.

Process activity

The Backdoor creates the following process(es):

e7f459fc7deeb5ad5b48bfe7c1b13fb3.exe:2024
e7f459fc7deeb5ad5b48bfe7c1b13fb3.exe:228
Reader_sl.exe:1064
msiexec.exe:1676

The Backdoor injects its code into the following process(es):

e7f459fc7deeb5ad5b48bfe7c1b13fb3.exe:568
1.tmp:1832

File activity

The process e7f459fc7deeb5ad5b48bfe7c1b13fb3.exe:568 makes changes in a file system.
The Backdoor creates and/or writes to the following file(s):

%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\desktop.ini (67 bytes)
%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\STQNGHMV\desktop.ini (67 bytes)
%System%\config\SOFTWARE.LOG (1987 bytes)
%System%\config\software (949 bytes)
%Program Files%\LP\0205\1.tmp (12988 bytes)
%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\8GBWOOFU\desktop.ini (67 bytes)
%Program Files%\LP\0205\C29.exe (285186 bytes)
%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\4J2PUVA7\desktop.ini (67 bytes)
%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\5ACQVEYP\desktop.ini (67 bytes)
%Documents and Settings%\%current user%\Application Data\507CF\F2C6.07C (3946 bytes)

Registry activity

The process e7f459fc7deeb5ad5b48bfe7c1b13fb3.exe:568 makes changes in a system registry.
The Backdoor creates and/or sets the following values in system registry:

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths]
"Directory" = "%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths\path4]
"CacheLimit" = "65452"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths\path4]
"CachePath" = "%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\Cache4"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections]
"SavedLegacySettings" = "3C 00 00 00 16 00 00 00 03 00 00 00 14 00 00 00"

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

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

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths\path2]
"CachePath" = "%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\Cache2"

[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]
"Cache" = "%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files"

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

[HKLM\System\CurrentControlSet\Hardware Profiles\0001\Software\Microsoft\windows\CurrentVersion\Internet Settings]
"ProxyEnable" = "1"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths\path1]
"CacheLimit" = "65452"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings]
"ProxyServer" = "http=127.0.0.1:50202"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths\path2]
"CacheLimit" = "65452"

[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "AA 03 35 D1 EC B7 54 08 E2 02 0F DE 87 8A 31 43"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths\path1]
"CachePath" = "%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\Cache1"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths\path3]
"CacheLimit" = "65452"

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

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

[HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections]
"DefaultConnectionSettings" = "3C 00 00 00 03 00 00 00 03 00 00 00 14 00 00 00"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths\path3]
"CachePath" = "%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\Cache3"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths]
"Paths" = "4"

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]
"C29.exe" = "%Program Files%\LP\0205\C29.exe"

Automatic startup of the following service is disabled:

[HKLM\System\CurrentControlSet\Services\wscsvc]
"Start" = "3"

The Backdoor deletes the following value(s) in system registry:

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

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

The process e7f459fc7deeb5ad5b48bfe7c1b13fb3.exe:2024 makes changes in a system registry.
The Backdoor creates and/or sets the following values in system registry:

[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "97 68 F3 50 FA 58 96 13 C0 66 42 88 B9 58 B5 26"

The process e7f459fc7deeb5ad5b48bfe7c1b13fb3.exe:228 makes changes in a system registry.
The Backdoor creates and/or sets the following values in system registry:

[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "F6 86 03 28 9C 62 8A 66 FD 8F 9E 1B 44 08 55 57"

The process 1.tmp:1832 makes changes in a system registry.
The Backdoor creates and/or sets the following values in system registry:

[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "1B BA C5 D7 3C A9 23 68 BE 8B DE 7A 6F E3 95 FD"

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

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths\path2]
"CachePath" = "%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\Cache2"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths\path1]
"CachePath" = "%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\Cache1"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths\path3]
"CacheLimit" = "65452"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths\path1]
"CacheLimit" = "65452"

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

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths]
"Directory" = "%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths\path4]
"CacheLimit" = "65452"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths\path4]
"CachePath" = "%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\Cache4"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths\path3]
"CachePath" = "%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\Cache3"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths]
"Paths" = "4"

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

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths\path2]
"CacheLimit" = "65452"

[HKCU\Software\WinRAR]
"HWID" = "7B 38 35 37 30 36 37 39 33 2D 38 33 30 45 2D 34"

The process Reader_sl.exe:1064 makes changes in a 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 msiexec.exe:1676 makes changes in a system registry.
The Backdoor creates and/or sets the following values in system registry:

[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "9C 35 5B C6 30 9E BE F2 23 81 5C F4 32 A6 77 7D"

Network activity (URLs)

URL IP
hxxp://e6845.ce.akamaiedge.net/pca3-g2.crl
hxxp://patentgenius.com/132.gif?sv=279&tq=gHZutDyMv5rJejDia9nrmsl6giWz+JZbVyA= 76.76.15.190
hxxp://e6845.ce.akamaiedge.net/CSC3-2009.crl
hxxp://767113.parkingcrew.net/logo.png?sv=224&tq=gL5HtzoYwLzEpUb5fU3HxcWyBPQ6EsazybMRtyFZ0umG8Ar0SsSA/gSoSEU=
hxxp://e6845.ce.akamaiedge.net/pca3.crl
hxxp://e6845.ce.akamaiedge.net/CSC3-2009-2.crl
hxxp://plkp.kolabatory.com/logo.png?sv=694&tq=gKZEtzoYwLzEvUb5dQzRsrCqBvcsTca3l74EgC5OjrPGpgfib1XFp5zpRPksUt+A/gSoSEU= 69.43.161.176
hxxp://a26.d.akamai.net/msdownload/update/v3/static/trustedr/en/authrootseq.txt
hxxp://a26.d.akamai.net/msdownload/update/v3/static/trustedr/en/authrootstl.cab
hxxp://TRANSERSDATAFORME.COM/gate.php (ET CNC Zeus/Spyeye/Palevo Tracker Reported CnC Server (group 6) , Malicious)
hxxp://767113.parkingcrew.net/logo.png?sv=659&tq=gKZEtzoYwLzEvUb5dQzRsrCqBvcsTca3l74EgC9OjrPGpgfib1XFp5zpRPksUt+A/gSoSEU=
crl.verisign.com 23.61.69.163
csc3-2009-2-crl.verisign.com 23.60.133.163
0sx5bk.imbirsupport.com 62.116.143.18
www.download.windowsupdate.com 23.3.98.8
csc3-2009-crl.verisign.com 23.60.133.163
transersdataforme.com 192.155.89.148
ksopdeuqn.imbirsupport.com 62.116.143.18


Rootkit activity

No anomalies have been detected.

Propagation


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. Terminate malicious process(es) (How to End a Process With the Task Manager):

    e7f459fc7deeb5ad5b48bfe7c1b13fb3.exe:2024
    e7f459fc7deeb5ad5b48bfe7c1b13fb3.exe:228

  2. Delete the original Backdoor file.
  3. Delete or disinfect the following files created/modified by the Backdoor:

    %Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\desktop.ini (67 bytes)
    %Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\STQNGHMV\desktop.ini (67 bytes)
    %System%\config\SOFTWARE.LOG (1987 bytes)
    %System%\config\software (949 bytes)
    %Program Files%\LP\0205\1.tmp (12988 bytes)
    %Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\8GBWOOFU\desktop.ini (67 bytes)
    %Program Files%\LP\0205\C29.exe (285186 bytes)
    %Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\4J2PUVA7\desktop.ini (67 bytes)
    %Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\5ACQVEYP\desktop.ini (67 bytes)
    %Documents and Settings%\%current user%\Application Data\507CF\F2C6.07C (3946 bytes)

  4. Delete the following value(s) in the autorun key (How to Work with System Registry):

    [HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run]
    "C29.exe" = "%Program Files%\LP\0205\C29.exe"

  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.

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