This detection rule is designed to identify the use of the 'wget' command on Linux systems for downloading files into temporary directories, specifically '/tmp' and '/var/tmp'. The presence of files in these directories created by 'wget' can indicate malicious activity, such as the download of payloads by malware, especially if the downloaded content is executed or used for command-and-control purposes. The detection logic focuses on events where the 'Image' ends with '/wget' and the target filename starts with either '/tmp/' or '/var/tmp/'. The rule can help security teams identify potential threats related to unauthorized file downloads in these directories and respond accordingly. It is important to note that legitimate applications may also use 'wget' for valid purposes, hence false positives should be considered, such as legitimate downloads from web sources.