A security analyst is conducting a live forensic analysis on a server suspected of being compromised. The analyst observes active malicious processes and unusual outbound network connections. According to the order of volatility, what is the most critical initial action to preserve evidence?
Create a bit-for-bit image of the server's storage drives.
Disconnect the server from the network to contain the threat.
Shut down the server to prevent the malware from spreading.
The order of volatility dictates that evidence should be collected from the most volatile to the least volatile components. Data in system RAM, which includes running processes, network connections, and memory-resident malware, is highly volatile and will be lost if the server is powered down or rebooted. Therefore, capturing a complete memory dump is the first and most critical action in this scenario. Disconnecting the server from the network is a containment step that alters evidence (the state of network connections) and should typically follow memory acquisition. Creating a disk image is also essential but captures less volatile data and is performed after securing RAM. Shutting down the server is destructive to volatile evidence and should be avoided until after collection is complete.
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ISC2 CISSP
Security Operations
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