Trojan.Win32.Swrort.3_ae35f1b6bd

by malwarelabrobot on August 24th, 2013 in Malware Descriptions.

Trojan.Win32.Pakes.qvc (Kaspersky), Trojan.Win32.FakeAV.IS (v) (VIPRE), Backdoor.Win32.Agent!IK (Emsisoft), 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: ae35f1b6bd0b54ab161790da41c8c87e
SHA1: 8e8a537722ee3cdc3c7333aa8e130dc5475ee239
SHA256: e83cb655dc3660940a0df9386d10ae1e7791c43b446522853719a444f64ac3ec
SSDeep: 3072:Q06Jr7nIYjgL1vphQ7wIPCF8WkjYau1TBuIzaNRawYsQ3:Qryvc aYaupBjzqaOQ
Size: 167936 bytes
File type: EXE
Platform: WIN32
Entropy: Packed
PEID: UPolyXv05_v6
Company: no certificate found
Created at: 2005-10-25 08:13:10


Summary:

Trojan. A program that appears to do one thing but actually does another (a.k.a. Trojan Horse).

Payload

No specific payload has been found.

Process activity

The Trojan creates the following process(es):

ae35f1b6bd0b54ab161790da41c8c87e.exe:1704
ae35f1b6bd0b54ab161790da41c8c87e.exe:2012

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

ae35f1b6bd0b54ab161790da41c8c87e.exe:1608

File activity

The process ae35f1b6bd0b54ab161790da41c8c87e.exe:1608 makes changes in a file system.
The Trojan creates and/or writes to the following file(s):

%Documents and Settings%\%current user%\Application Data\507CF\86173.exe (82577 bytes)
%Documents and Settings%\%current user%\Application Data\507CF\F2C6.07C (2668 bytes)
%Documents and Settings%\%current user%\NTUSER.DAT.LOG (6168 bytes)
%Documents and Settings%\%current user%\NTUSER.DAT (3604 bytes)

Registry activity

The process ae35f1b6bd0b54ab161790da41c8c87e.exe:1608 makes changes in a system registry.
The Trojan 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 14 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=127.0.0.1:59798"

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

[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "E6 78 35 97 B5 FE 37 17 3B 67 80 DB 28 D1 73 FA"

[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"

The Trojan adds the reference to itself to be executed when a user logs on:

[HKCU\Software\Microsoft\Windows NT\CurrentVersion\Winlogon]
"Shell" = "explorer.exe,%Documents and Settings%\%current user%\Application Data\507CF\86173.exe"

The Trojan 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 ae35f1b6bd0b54ab161790da41c8c87e.exe:1704 makes changes in a system registry.
The Trojan creates and/or sets the following values in system registry:

[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "DA A5 D0 87 C7 8D 53 23 62 39 33 31 34 C4 17 3B"

The process ae35f1b6bd0b54ab161790da41c8c87e.exe:2012 makes changes in a system registry.
The Trojan creates and/or sets the following values in system registry:

[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "48 BB 1B 4F 4D D8 57 7A 70 98 90 30 D7 4F BC 4A"

Network activity (URLs)

URL IP
hxxp://www.google.com/ 74.125.226.242
hxxp://www.google.ca/?gws_rd=cr 74.125.226.248


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):

    ae35f1b6bd0b54ab161790da41c8c87e.exe:1704
    ae35f1b6bd0b54ab161790da41c8c87e.exe:2012

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

    %Documents and Settings%\%current user%\Application Data\507CF\86173.exe (82577 bytes)
    %Documents and Settings%\%current user%\Application Data\507CF\F2C6.07C (2668 bytes)
    %Documents and Settings%\%current user%\NTUSER.DAT.LOG (6168 bytes)

  4. Remove the references to the Trojan by modifying the following registry value(s) (How to Work with System Registry):

    [HKCU\Software\Microsoft\Windows NT\CurrentVersion\Winlogon]
    "Shell" = "explorer.exe,%Documents and Settings%\%current user%\Application Data\507CF\86173.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.