Welcome to the Virus Encyclopedia of Panda Security.
It only affects cellular phones that use the operating system Symbian. It blocks the cellphone, as it replaces some operating system components. Some variants also install the worm Cabir.A.
|First detected on:||Feb. 2, 2005|
|Detection updated on:||Feb. 2, 2005|
|Country of origin:||RUSSIA|
Locknut.A is a Trojan that only affects cellular phones that use the operating system Symbian 7.0S or later.
Locknut.A passes itself off as a patch for the cellphone, thus attempting to trick the user into running it. Once it is run, Locknut.A replaces the operating system components, which prevents some applications from being run. As a result, the cellphone blocks.
Some variants of this Trojan install a copy of a Symbian worm, detected as SymbOS/Cabir.A.worm.
Keep in mind that Locknut.A needs the user intervention in order to be run on the cellphone. Before the malicious file is installed, the user receives a security warning.
Locknut.A is difficult to recognize, as it does not display any messages or warnings that indicate it has reached the computer.