By Cameron H. Malin, Eoghan Casey BS MA, James M. Aquilina
Linux Malware Incident reaction is a "first glance" on the Malware Forensics box consultant for Linux structures, showing the 1st steps in investigating Linux-based incidents. The Syngress electronic Forensics box courses sequence comprises partners for any electronic and machine forensic investigator and analyst. every one e-book is a "toolkit" with checklists for particular initiatives, case stories of inauspicious occasions, and specialist analyst guidance. This compendium of instruments for laptop forensics analysts and investigators is gifted in a succinct define layout with cross-references to supplemental appendices. it really is designed to supply the electronic investigator transparent and concise assistance in an simply available structure for responding to an incident or carrying out research in a lab.Presented in a succinct define layout with cross-references to integrated supplemental elements and appendicesCovers risky facts assortment method in addition to non-volatile info assortment from a dwell Linux systemAddresses malware artifact discovery and extraction from a dwell Linux method
Read or Download Linux Malware Incident Response: A Practitioner's Guide to Forensic Collection and Examination of Volatile Data: An Excerpt from Malware Forensic Field Guide for Linux Systems PDF
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Extra info for Linux Malware Incident Response: A Practitioner's Guide to Forensic Collection and Examination of Volatile Data: An Excerpt from Malware Forensic Field Guide for Linux Systems
Figs. 21). 20—Using the whoami command. 21—Using the logname command. • The id command provides additional details about the current user, including the uid, gid, and which groups the user is in, as shown in Fig. 22. 22—Using the id command to gather user and group information for current user. Network Configuration u When documenting the configuration of the subject system, keep an eye open for unusual items. • Look for a Virtual Private Network (VPN) adapter configured on a system that does not legitimately use a VPN.
This information may be helpful in identifying processes that are logging keystrokes or transferring large amounts of data to/from the compromised system. • To gather resource consumption details for a specific target process, use the -p ,target pid . command option. Process to Executable Program Mapping: Full System Path to Executable File u Determine where the executable images associated with the respective processes reside on the system. This effort will reveal whether an unknown or suspicious program spawned the process, or if the associated program is embedded in an anomalous location on the system, necessitating a deeper investigation of the program.
U Identifying logged on users serves a number of investigative purposes: • Help discover any potential intruders logged into the compromised system. • Identify additional compromised systems that are reporting to the subject system as a result of the malicious code incident. • Provide insight into a malicious insider malware incident. • Provide additional investigative context by being correlated with other artifacts discovered. • Obtain the following information about identified users logged onto the subject system: ❒ Username ❒ Point of origin (remote or local) ❒ Duration of the login session ❒ Shares, files, or other resources accessed by the user ❒ Processes associated with the user ❒ Network activity attributable to the user.