Methods and apparatus to validate and restore machine configurations
Methods and apparatus to validate and restore machine configurations are disclosed herein. An example apparatus includes a context identifier to obtain first context information for a first set of configuration update events occurring on a computing device, a guest agent interface to transmit the first set of configuration update events to a security manager for generation of a policy, the policy including allowable configuration update events and responses to unallowable configuration update events, an event comparator to compare second context information of a subsequent configuration update event obtained by the context identifier to the policy received from the security manager, and an event handler to determine, when the subsequent configuration update event is not included in the policy, that the subsequent configuration update event is to be transmitted to the security manager for generation of an updated policy.
1. An apparatus comprising:
at least one memory;
instructions in the apparatus; and
processor circuitry to execute the instructions to:
obtain first context information of a set of configuration update events;
obtain second context information of a first subsequent configuration update event;
transmit the set of configuration update events to a security manager for generation of a policy including allowable configuration update events and responses to unallowable configuration update events;
determine whether the first subsequent configuration update event is an event covered by a rule of the policy:
in response to determining that the first subsequent configuration update event is not covered by the rule of the policy:
transmit the first subsequent configuration update event to the security manager for generation of an updated policy; and
enable, based on the updated policy, a comparison between third context information of a second subsequent configuration update event to the updated policy, the processor circuitry to determine, based on the comparison, whether to transmit the second subsequent configuration update event to the security manager for generation of a second updated policy.
2. The apparatus of claim 1 , wherein the second subsequent configuration update event occurs after the first subsequent configuration update event.
3. The apparatus of claim 1 , wherein the processor circuitry is to compare the second context information of the first subsequent configuration update event to the policy received from the security manager to determine whether the first subsequent configuration update is covered by the rule of the policy.
4. The apparatus of claim 1 , wherein the processor circuitry is to allow the first subsequent configuration update event when the second context information of the first subsequent configuration update event matches an allowable configuration update event included in the policy.
5. The apparatus of claim 1 , wherein the processor circuitry is to block the first subsequent configuration update event when the second context information of the first subsequent configuration update event matches an unallowable configuration update event included in the policy and the first subsequent configuration update event has not occurred.
6. The apparatus of claim 1 , wherein the set of configuration update events and the first subsequent configuration update event occur on a computing device, the processor circuitry is to restore the computing device to a previous configuration based on a snapshot when the second context information of the first subsequent configuration update event matches an unallowable configuration update event included in the policy and the first subsequent configuration update event has occurred.
7. The apparatus of claim 1 , wherein the first, second, or third context information includes a binary image path or a cryptographic hash.
8. A non-transitory computer readable storage medium comprising instructions that, when executed, cause one or more processors to at least:
obtain first context information of a set of configuration update events;
obtain second context information of a first subsequent configuration update event;
transmit the set of configuration update events to a security manager for generation of a policy including allowable configuration update events and responses to unallowable configuration update events;
determine whether the first subsequent configuration update event is an event covered by a rule of the policy:
in response to determining that the first subsequent configuration update event is not covered by the rule of the policy:
transmit the first subsequent configuration update event to the security manager for generation of an updated policy; and
enable, based on the updated policy, a comparison between third context information of a second subsequent configuration update event to the updated policy, the one or more processors are to determine, based on the comparison, whether to transmit the second subsequent configuration update event to the security manager for generation of a second updated policy.
9. The non-transitory computer readable storage medium of claim 8 , wherein the instructions, when executed, cause the one or more processors to compare the second context information of the first subsequent configuration update event to the policy received from the security manager to determine whether the first subsequent configuration update is covered by the rule of the policy.
10. The non-transitory computer readable storage medium of claim 8 , wherein the instructions, when executed, cause the one or more processors to allow the first subsequent configuration update event when the second context information of the first subsequent configuration update event matches an allowable configuration update event included in the policy.
11. The non-transitory computer readable storage medium of claim 8 , wherein the instructions, when executed, cause the one or more processors to block the first subsequent configuration update event when the second context information of the first subsequent configuration update event matches an unallowable configuration update event included in the policy and the first subsequent configuration update event has not occurred.
12. The non-transitory computer readable storage medium of claim 8 , wherein the set of configuration update events and the first subsequent configuration update event occur on a computing device, and the instructions, when executed, cause the one or more processors to restore a previous configuration based on a snapshot when the second context information of the first subsequent configuration update event matches an unallowable configuration update event included in the policy and the first subsequent configuration update event has occurred.
13. The non-transitory computer readable storage medium of claim 8 , wherein the first, second, or third context information includes a binary image path or a cryptographic hash.
14. The non-transitory computer readable storage medium of claim 8 , wherein the second subsequent configuration update event occurs after the first subsequent configuration update event.
15. An apparatus comprising at least one processor to:
instantiate a virtual machine to:
obtain first context information of a set of configuration update events from an operating system;
obtain second context information of a first subsequent configuration update event from the operating system; and
instantiate a virtual switch to:
transmit the set of configuration update events to a security manager for generation of a policy including allowable configuration update events and responses to unallowable configuration update events;
in response to determining that the first subsequent configuration update event is an event not covered by a rule of the policy, transmit the first subsequent configuration update event to the security manager for generation of an updated policy; and
wherein the virtual machine is to:
enable, based on the updated policy, a comparison between third context information of a second subsequent configuration update event to the updated policy; and
determine, based on the comparison, whether to transmit the second subsequent configuration update event to the security manager for generation of a second updated policy.
16. The apparatus of claim 15 , wherein the virtual machine is to compare the second context information of the first subsequent configuration update event to the policy received from the security manager to determine whether the first subsequent configuration update is covered by the rule of the policy.
17. The apparatus of claim 15 , wherein the virtual machine is to allow the first subsequent configuration update event when the second context information of the first subsequent configuration update event matches an allowable configuration update event included in the policy.
18. The apparatus of claim 15 , wherein the virtual machine is to block the first subsequent configuration update event when the second context information of the first subsequent configuration update event matches an unallowable configuration update event included in the policy and the first subsequent configuration update event has not occurred.
19. The apparatus of claim 15 , wherein the operating system operates on the virtual machine and the at least one processor is to restore the virtual machine to a previous configuration based on a snapshot when the second context information of the first subsequent configuration update event matches an unallowable configuration update event included in the policy and the first subsequent configuration update event has occurred.
20. The apparatus of claim 15 , wherein the first, second, or third context information includes a binary image path or a cryptographic hash.