Content
PWS-Pykse
- Type
- Trojan
- SubType
- Password
- Discovery Date
- 10/17/2007
- Length
- 3,87,584 bytes
- Minimum DAT
- 5143 (10/17/2007)
- Updated DAT
- 5143 (10/17/2007)
- Minimum Engine
- 5.1.00
- Description Added
- 10/17/2007
- Description Modified
- 10/18/2007 10:08 AM (PT)
Tab Navigation
Characteristics
This password stealing trojan purports itself to be a new plug-in of Skype.
On execution, this trojan displays the following fake message box, stating that a Skype plug-in called "Skype-Defender" has been installed.

It also terminates any running instance of Skype, and pops up the fake Skype login window as follows:

Once the user enters the username and password, the trojan collects this information and sends it to a predefined website, and displays the following fake message stating that the username and password were not recognized.

This trojan does not create any registry entries for loading at system startup.
Symptoms
- Skype login window looks different.
- Valid username and passwords are also not recognized.
Method of Infection
Trojans do not self-replicate. They often arrive as a desirable or intriguing file and conceal their true nature. Common ways to receive a trojan are through newsgroup postings, IRC, peer-to-peer networks, spam, etc.
Removal
AVERT recommends to always use latest DATs and engine. This threat will be cleaned if you have this combination.
Variants
Variants
N/A
All Information
Overview -
This detection is for a password stealing trojan, which targets Skype and steals username and password entered by the user.
Aliases
- Trojan-Spy.Win32.Skyper.b (F-Secure)
- Trojan-Spy.Win32.Skyper.b (Kaspersky)
- TSPY_SPEYK.A (Trend Micro)
Characteristics
Characteristics -
This password stealing trojan purports itself to be a new plug-in of Skype.
On execution, this trojan displays the following fake message box, stating that a Skype plug-in called "Skype-Defender" has been installed.

It also terminates any running instance of Skype, and pops up the fake Skype login window as follows:

Once the user enters the username and password, the trojan collects this information and sends it to a predefined website, and displays the following fake message stating that the username and password were not recognized.

This trojan does not create any registry entries for loading at system startup.
Symptoms
Symptoms -
- Skype login window looks different.
- Valid username and passwords are also not recognized.
Method of Infection
Method of Infection -
Trojans do not self-replicate. They often arrive as a desirable or intriguing file and conceal their true nature. Common ways to receive a trojan are through newsgroup postings, IRC, peer-to-peer networks, spam, etc.
Removal -
Removal -
AVERT recommends to always use latest DATs and engine. This threat will be cleaned if you have this combination.
Additional Windows ME/XP removal considerations
Variants
Variants -
N/A