Trojan:SymbOS/Locknut.A is a malicous SIS file trojan that pretends to be patch for Symbian Series 60 mobile phones. It is distributed in files named patch_v1.sis and patch_v2.sis.
Locknut.A will only work on devices running Symbian OS 7.0S or newer; devices using Symbian OS 6.0 or 6.1 are unaffected.
Locknut is targeted against Symbian Series 60 devices, but also series 70 devices, such as Nokia 7710 are vulnerable to Locknut. However when trying to install Skulls trojan on Nokia 7710, user will get a warning that the SIS file is not intended for the device, so risk of accidental infection is low.
When Locknut.A sis file is installed the files will be installed into following locations: Continue reading