Bitdefender Ipr Management Ltd.

Adrian V Colesa

Sandor Lukacs

Raul V Tosa

Dan H Lutas

Vlad I Topan

Cristian B Sirb

Radu I Ciocas

Described systems and methods allow conducting computer security operations, such as detecting malware and spyware, in a bare-metal computer system. In some embodiments, a first processor of a computer system executes the code samples under assessment, whereas a second, distinct processor is used to carry out the assessment and to control various hardware components involved in the assessment. Such hardware components include, among others, a memory shadower configured to detect changes to a memory connected to the first processor, and a storage shadower configured to detect an attempt to write to a non-volatile storage device of the computer system. The memory shadower and storage shadower may be used to inject a security agent into the computer system.

Anti-malware systems and methods using hardware-assisted code injection

Described systems and methods allow a host system, such as a computer or a smartphone, to enable a secure environment, which can be used to carry out secure communications with a remote service provider, for applications such as online banking, e-commerce, private messaging, and online gaming, among others. A hypervisor oversees a switch between an insecure environment and the secure environment, in response to a user input, or in response to an event such as receiving a telephone call. Switching from the insecure to the secure environment comprises transitioning the insecure environment to a sleeping state and loading the secure environment from a memory image (snapshot) saved to disk, after checking the integrity of the snapshot. Switching from the secure to the insecure environment comprises transitioning the secure environment into a sleeping state and waking up the insecure environment.

Enabling a secure environment through operating system switching

Described systems and methods allow conducting computer security operations, such as detecting malware and spyware, in a bare-metal computer system. In some embodiments, a first processor of a computer system executes the code samples under assessment, whereas a second, distinct processor is used to carry out the assessment and to control various hardware components involved in the assessment. The described computer systems may be used in conjunction with a conventional anti-malware filter to increase throughput and/or the efficacy of malware scanning.

Systems and methods for batch processing of samples using a bare-metal computer security appliance

Described systems and methods allow conducting computer security operations, such as detecting malware and spyware, in a bare-metal computer system. In some embodiments, a first processor of a computer system executes the code samples under assessment, whereas a second, distinct processor is used to carry out the assessment and to control various hardware components involved in the assessment. Such hardware components include, among others, a memory shadower configured to detect changes to a memory connected to the first processor, and a storage shadower configured to detect an attempt to write to a non-volatile storage device of the computer system.

Bare-metal computer security appliance

Described systems and methods allow protecting a client system, such as a computer system or smartphone, from malware. In some embodiments, a network regulator device is used to distribute a bootable image of a hypervisor, on demand, to each of a set of client systems connected to a network. After booting on a client system, the hypervisor loads the local OS and applications into a virtual machine. Integrity measurements of the hypervisor and/or OS are sent to the network regulator for verification. When the network regulator determines that software executing on a client system, such as the hypervisor and/or the OS, are not in a trusted state, the network regulator may block access of the respective client system to the network.

Below-OS security solution for distributed network endpoints

Described systems and methods allow protecting a host system, such as a computer or smartphone, from malware. In some embodiments, an anti-malware application installs a hypervisor, which displaces an operating system executing on the host system to a guest virtual machine (VM). The hypervisor further creates a set of virtual containers (VC), by setting up a memory domain for each VC, isolated from the memory domain of the guest VM. The hypervisor then maps a memory image of a malware scanner to each VC. When a target object is selected for scanning, the anti-malware application launches the malware scanner. Upon intercepting the launch, the hypervisor switches the memory context of the malware scanner to the memory domain of a selected VC, for the duration of the scan. Thus, malware scanning is performed within an isolated environment.

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Cluj-Napoca, Romania

Adrian V Colesa