How do you tell if intrusion is young or old
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To determine whether an intrusion is young or old, you typically need to analyze various factors and evidence associated with the intrusion. Here are a few steps to help you make such an assessment:
1. Examine timestamp data: Look for timestamps associated with the intrusion, such as log entries, system or file modification dates, or network traffic records. Compare these timestamps with known events to establish a reference point.
2. Investigate correlation with known incidents: Check if the intrusion is linked to any previously reported or known security incidents. This information can provide context and help determine whether it is a recent occurrence or has been ongoing.
3. Analyze the malware or attack technique: If applicable, analyze the malware involved in the intrusion or the specific attack technique employed. Researchers often identify and categorize newly discovered malware or attack methods. Comparing the intrusion characteristics with known instances can provide insights into its age.
4. Review system and network logs: Scrutinize logs from affected systems and network devices to understand the timeline of the intrusion. Look for patterns, anomalies, or indications of compromise. Comparing the logged events against known patterns or attack signatures can help narrow down the age of the intrusion.
5. Check for indicators of compromise (IOCs): IOCs are artifacts or data that indicate malicious activity. Consult reputable threat intelligence sources, security bulletins, or vendor reports for relevant IOCs associated with the intrusion. Matching the observed IOCs against known ones can help assess whether the intrusion is recent or part of a long-running campaign.
6. Engage incident response or forensic specialists: If determining the age of the intrusion is critical for legal or reactive purposes, consider involving experienced incident response or forensic professionals. They possess specialized knowledge, tools, and techniques to conduct a more thorough investigation and provide accurate timelines.
Remember that assessing the age of an intrusion can be challenging, especially if the attacker has taken steps to obfuscate their activity. It is crucial to combine multiple sources of evidence and consider the larger context to arrive at a reasonable conclusion.