Content
Keylog-Stawin
- Type
- Trojan
- SubType
- Win32
- Discovery Date
- 12/01/2003
- Length
- 3-6kB (exe)
3-5kB (dll) - Minimum DAT
- 4307 (12/03/2003)
- Updated DAT
- 4397 (10/06/2004)
- Minimum Engine
- 5.1.00
- Description Added
- 01/28/2004
- Description Modified
- 04/08/2004 12:53 PM (PT)
Tab Navigation
Characteristics
--Update 8th April, 2004 13:00 PST The description below is of one of the many variants included under this detection name. Logged data is written to %WinDir%: Logged data is then sent via SMTP to the hacker. An IP address hard-coded in the trojan is used for the SMTP server: The email sent is constructed as follows: From:
govnodav2004@mail.ru The KGN.TXT keylog file is deleted once mail is sent.
This description has been updated to cover more variants of Keylog-Stawin which have been spammed out.
--
This generic detection is regularly updated by AVERT for multiple keylogging trojans of this family, many of which are known to have been spammed to users. Users are recommended to use the latest engine/DATs combination for optimal detection.
--
The trojan is intended to log data from user sessions associated with banking transactions. Data entered into windows with any of the following strings in the title is logged (please note: the particular window strings vary from version to version):
To:
govnodav2004@mail.ru
Subject:
Keylog from ([machine name])
Body:
[window title]
------------------------ [logged data]
Symptoms
Method of Infection
As detailed above. Many variants are known to have been spammed to users. However, it may also be received through one of the other common channels trojans are distributed, for example: When executed the trojan copies itself into %WinDir% on the victim machine: It drops a keyboard hooking DLL into %WinDir% as well: The following Registry key is set to hook system startup: HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\ The
Run "OLE" = %WinDir%\
Removal
All Users:
Use specified engine and DAT files for detection and removal.
Modifications made to the system Registry and/or INI files for the purposes of hooking system startup, will be successfully removed if cleaning with the recommended engine and DAT combination (or higher).
Variants
Variants
N/A
All Information
Overview -
This is a trojan detection. Unlike viruses, trojans do not self-replicate. They are spread manually, often under the premise that they are beneficial or wanted. The most common installation methods involve system or security exploitation, and unsuspecting users manually executing unknown programs. Distribution channels include email, malicious or hacked web pages, Internet Relay Chat (IRC), peer-to-peer networks, etc.
Aliases
- Keylog-Stawin.dll
- PWSteal.Tarno.D (Symantec)
- Troj/Banker-H (Sophos)
- TrojanSpy.Win32.Keylogger.aa (AVP)
Characteristics
Characteristics -
--Update 8th April, 2004 13:00 PST The description below is of one of the many variants included under this detection name. Logged data is written to %WinDir%: Logged data is then sent via SMTP to the hacker. An IP address hard-coded in the trojan is used for the SMTP server: The email sent is constructed as follows: From:
govnodav2004@mail.ru The KGN.TXT keylog file is deleted once mail is sent.
This description has been updated to cover more variants of Keylog-Stawin which have been spammed out.
--
This generic detection is regularly updated by AVERT for multiple keylogging trojans of this family, many of which are known to have been spammed to users. Users are recommended to use the latest engine/DATs combination for optimal detection.
--
The trojan is intended to log data from user sessions associated with banking transactions. Data entered into windows with any of the following strings in the title is logged (please note: the particular window strings vary from version to version):
To:
govnodav2004@mail.ru
Subject:
Keylog from ([machine name])
Body:
[window title]
------------------------ [logged data]
Symptoms
Symptoms -
Method of Infection
Method of Infection -
As detailed above. Many variants are known to have been spammed to users. However, it may also be received through one of the other common channels trojans are distributed, for example: When executed the trojan copies itself into %WinDir% on the victim machine: It drops a keyboard hooking DLL into %WinDir% as well: The following Registry key is set to hook system startup: HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\ The
Run "OLE" = %WinDir%\
Removal -
Removal -
All Users:
Use specified engine and DAT files for detection and removal.
Modifications made to the system Registry and/or INI files for the purposes of hooking system startup, will be successfully removed if cleaning with the recommended engine and DAT combination (or higher).
Additional Windows ME/XP removal considerations
Variants
Variants -
N/A
