In order, what are the five general steps of an intrusion?
A. Reconnaissance, scanning, gaining access, maintaining access, covering tracks
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Steps in attack |
Explanation |
Examples |
|
Reconnaissance |
Intelligence work of obtaining information, either passively or actively. |
Passively = Sniffing traffic, eavesdropping Actively = Obtaining data from ARIN and Whois databases, examining Web site HTML code, social engineering |
|
Scanning |
Identifying systems that are running and the services that are active on them. |
|
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Gaining access |
Exploiting identified vulnerabilities to gain unauthorized access. |
Exploiting a buffer overflow or brute forcing a password and logging onto a system. |
|
Maintaining access |
Uploading malicious software to ensure re-entry is possible. |
Installing a backdoor on a system. |
|
Covering tracks |
Carrying out activities to hide one's malicious activities. |
Deleting or modifying data in system and application logs. |