Home / malware Trojan:SymbOS/Cardtrap.A
First posted on 21 June 2010.
Source: SecurityHomeAliases :
There are no other names known for Trojan:SymbOS/Cardtrap.A.
Explanation :
A trojan, or trojan horse, is a seemingly legitimate program which secretly performs other, usually malicious, functions. It is usually user-initiated and does not replicate.
Additional DetailsTrojan:SymbOS/Cardtrap.A infects devices running the Symbian S60 operating system and tries to disable large number of system and third party applications. The trojan also installs Windows malware on the phone's memory card.
The trojan is distributed in a malicious SIS file named 'Black_Symbian v0.10.sis '.
Execution
On installation, the trojan will replace the main executable of several third party applications by overwriting their main executable file.These programs must be reinstalled to repair the damage.
The Cardtrap.A installs Windows worms Win32/Padobot.Z and Win32/Rays to the phone memory card. Win32/Rays is copied with name System.exe and has the same icon as a system folder in the memory card, so if the user is tries to read the card via a PC, he might accidentally execute Win32/Rays.
Padobot.Z is copied along with an autorun file that points to the Padobot.Z executable, so that if the card is inserted into a PC using Windows, the autorun tries to execute Padobot.Z.
We tried this feature with Windows XP SP2 and Windows 2000, and could not get autorun to work. But the autorun feature might work with some Windows installations.Last update 21 June 2010
