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1 2 3 4 5 6 7 8 Taken from SANS 9 FTK Imager, LiveKD, etc FTK Imager, EnCase, Xways, dd, etc 10 MoonSols http://www.team-cymru.org/Services/MHR/ Malware Hash Registry by Team Cymru. Utilizes a DNS query interface to lookup MD5 or SHA-1 Hashes for malware http://www.virustotal.com/buscaHash.html VirusTotal.com Online hash lookup no api/automation yet like Team Cymru but does frequently have hashes for current new malware Pay particular attention to .exe and .dll files 11 FTK Imager, Mount Image Pro, P2 Explorer, etc 12 Mandiant – IOC Finder, IOC Editor, Red Curtain, etc YARA project Some of IOC characteristics: file is packed, located in \windows\system32\, registry key is “Run” or “RunOnce”, etc 13 Mandiant Redline Volatility with Malfind plugin Unsigned found in high percentage of processes……not good. File outside of normal directory (system32)……bad. Process like dllhost running as admin……bad. Process like iexplore.exe opening cmd.exe…….bad. 14 Malware likes to be persistent. It typically wants to survive a reboot. Investigate scheduled tasks, windows services and the registry. FTK, EnCase, Registry Viewer, Registry Decoder, Regripper, etc. 15 16 Packing is one way that malware slips past AV. Mandiant Red Curtain, Density Scout, SysInternals Sigcheck, PEiD, etc 17 MZ for Mark Zbikowski .dll have MZ header, others too. 18 UPX0, UPX1 confirm that UPX was used. 19 20 Mandiant Red Curtain 21 PEiD 22 Tasks: c:\windows\tasks\schedLgu.txt Logon: 529 Failed Login, 528 Successful Login, etc Account: 680/4776 Successful/Failed account authentication 675/4771 Pre-authentication failed (failed login) 23 Rogue 680/4776 account successfully authenticated 540/4624 successful network logon immediately following Suspicious 7034 System crashed unexpectedly 7035 Service sent a Start/Stop control 7036 Service started or stopped 7040 Start type changed Boot/On Request/Disabled Clearing 517 Logparser, Event log explorer, Log parser lizard 24 log2timeline 25 log2timeline 26 log2timeline 27 log2timeline 28 29 30 31 32