The ps command is used before the kill command to discover the PID for the specific process. An alert is incorrectly issued and does not indicate an actual security incident.Exploits are not being detected by the security systems that are in place.An alert is verified to be an actual security incident.Normal traffic is correctly ignored and erroneous alerts are not being issued.What is indicated by a true negative security alert classification? Any other user or group on the computer can only read the file.ĥ0. The third set of characters is for any other user or group permissions (r–). The group, staff, who owns the file can read and write to the file. The second set of characters is for group permissions (rw-). The user, sales, who owns the file can read, write and execute the file. The first set of characters is for user permission (rwx). For directories, the first dash would be replaced with a “d”. In the example displayed, the file has the following permissions: The file permissions are always displayed in the user, group and other order. It is the criterion that is used to filter traffic.It is the address to be used by a router to determine the best path to forward packets.It is the address that is unknown, so the ACL must be placed on the interface closest to the source address.
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Installation – The threat actor establishes a back door into the system to allow for continued access to the target.Ĭommand and Control (CnC) – The threat actor establish command and control (CnC) with the target system.Īction on Objectives – The threat actor is able to take action on the target system, thus achieving the original objective.Ĥ2. Weaponization – The threat actor uses the information from the reconnaissance phase to develop a weapon against specific targeted systems.ĭelivery – The weapon is transmitted to the target using a delivery vector.Įxploitation – The threat actor uses the weapon delivered to break the vulnerability and gain control of the target. Reconnaissance – The threat actor performs research, gathers intelligence, and selects targets. The Cyber Kill Chain specifies seven steps (or phases) and sequences that a threat actor must complete to accomplish an attack: A virus has an enabling vulnerability, a propagation mechanism, and a payload.A virus can be dormant and then activate at a specific time or date.A virus provides the attacker with sensitive data, such as passwords.A virus typically requires end-user activation.
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A virus replicates itself by independently exploiting vulnerabilities in networks.Which two statements are characteristics of a virus? (Choose two.) For example in an IPSec VPN implementation, the data transmission uses a shared secret (generated with an asymmetric key algorithm) with a symmetric encryption algorithm used for performance.ġ0. A VPN may use both an asymmetric key and a symmetric encryption algorithm. The key is pre-configured by the network administrator. The router authentication with CHAP uses a symmetric key algorithm. Encrypting files before saving them to a storage device uses a symmetric key algorithm because the same key is used to encrypt and decrypt files. The SSH server generates a pair of public/private keys for the connections. The SSH protocol uses an asymmetric key algorithm to authenticate users and encrypt data transmitted.