![]() A high-privilege user account accessing sensitive data during off-peak hours or on files rarely accessed could indicate credentials were phished or stolen. A high-privileged user account is necessary for an attacker to access data that is otherwise locked down from standard user accounts with basic permissions. High-privilege user activity irregularities on sensitive data: Compromised user accounts are used to access sensitive data. ![]() Outbound traffic during off-peak hours or traffic communicating with a suspicious IP could indicate an IoC security threat. Unusual outbound traffic: Attackers will use malware to collect and send data to an attacker-controlled server.IoAs will help determine whether suspicions are accurate or a false positive. Indicators of attack focus on a current attack that may be active and must be contained.įor extremely stealthy malware, a compromise could last for months before administrators are aware of it. Indicators of compromise are used after an attack was contained, when the organization needs to know where, what, and how. Indicators of attack (IoA) are used to determine whether an attack is ongoing and must be contained before it can cause more damage.īoth IoC cyber tools and IoA tools work with evidence and metadata that give investigators clues into the state of an attack. IoC security used during incident response is used to determine the extent of an attack and data breached. But in terms of investigations, there are two main concerns-is the attack ongoing, or has the issue been contained? Investigators use the indicators of compromise left by an attacker to answer both questions. What is an IoC compared to an IoA? Cybersecurity incidents have several phases. ![]()
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