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Investigating Malware using Memory Forensics

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Cysinfo Cyber Security Community

This document discusses memory forensics, which involves acquiring volatile memory from a system as a non-volatile image that can then be analyzed. It lists Monnappa K A's background and expertise in security investigations and memory forensics. The key steps in memory forensics are outlined as acquiring the memory dump, analyzing it to find forensic artifacts that can help reveal processes, network activity, registry changes and assist with unpacking malware and detecting rootkits. Several tools for acquiring memory on physical and virtual machines are also listed. An example scenario of using memory forensics to investigate a potentially infected system is provided.

Software
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Monnappa K A  Info Security Investigator - Cisco CSIRT  Co-founder Cysinfo - Cyber Security Community  Author of Limon Sandbox  Malware Analysis, Reverse Engineering, Memory Forensics  Conferences - Black Hat, FIRST, 4SICS  Articles - eForensics, Hakin9, Hack Insight Who am I
 Finding and extracting forensic artifacts  Helps in malware analysis  Determining process, network, registry activities  Reconstructing original state of the system  Assists with unpacking, rootkit detection and reverse engineering  Sophisticated actors  Critical data exists in memory Why Memory Forensics?
 Memory acquisition - Dumping the memory of a target machine  Memory analysis - Analyzing the memory dump for forensic artifacts Steps in Memory Forensics
Process of Acquiring Volatile memory to non volatile storage On Physical Machines(Tools):  KnTTools  F-Response  Mandiant Memoryze  HBGary FastDump  MoonSols Windows Memory Toolkit(DumpIt) On Virtual Machines:  Suspend the VM (.vmem) Memory Acquisition and tools
Your security device alerts on a http communication from 192.168.1.100 to a domain livedieoslix.com which resolves to 192.168.1.3, you suspect 192.168.1.100 to infected. You are asked to investigate the machine. -To start with, acquire the memory image “infected.dmp” from 192.168.1.100, using memory acquisition tools - Analyze the memory dump “infected.dmp” Demo-Scenario
Video Demo
Thank You ! @monnappa22 http://malware-unplugged.blogspot.in monnappa22@gmail.com Twitter: Blog: Gmail:

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Investigating Malware using Memory Forensics

  • 1.
  • 2. Monnappa K A  Info Security Investigator - Cisco CSIRT  Co-founder Cysinfo - Cyber Security Community  Author of Limon Sandbox  Malware Analysis, Reverse Engineering, Memory Forensics  Conferences - Black Hat, FIRST, 4SICS  Articles - eForensics, Hakin9, Hack Insight Who am I
  • 3.  Finding and extracting forensic artifacts  Helps in malware analysis  Determining process, network, registry activities  Reconstructing original state of the system  Assists with unpacking, rootkit detection and reverse engineering  Sophisticated actors  Critical data exists in memory Why Memory Forensics?
  • 4.  Memory acquisition - Dumping the memory of a target machine  Memory analysis - Analyzing the memory dump for forensic artifacts Steps in Memory Forensics
  • 5. Process of Acquiring Volatile memory to non volatile storage On Physical Machines(Tools):  KnTTools  F-Response  Mandiant Memoryze  HBGary FastDump  MoonSols Windows Memory Toolkit(DumpIt) On Virtual Machines:  Suspend the VM (.vmem) Memory Acquisition and tools
  • 6. Your security device alerts on a http communication from 192.168.1.100 to a domain livedieoslix.com which resolves to 192.168.1.3, you suspect 192.168.1.100 to infected. You are asked to investigate the machine. -To start with, acquire the memory image “infected.dmp” from 192.168.1.100, using memory acquisition tools - Analyze the memory dump “infected.dmp” Demo-Scenario