APT32 : APT32 used Mimikatz and customized versions of Windows Credential Dumper to harvest credentials. APT3 has used a tool to dump credentials by injecting itself into lsass.exe and triggering with the argument "dig." Powershell Live-Memory Analysis Tools: Dump-Memory, Dump-Strings, Check-MemoryProtection I’m releasing three new tools for Powershell that may be of use for those performing live-memory forensics or for penetration testers trying to pull sensitive information from memory. How do adversaries Dump Credentials? Mimikatz – Dump domain hashes via lsadump Empire. ... PowerShell was used for this command. This is performed by launching Task Manager as a privileged user, selecting lsass.exe, and clicking “Create dump file”. LSASS memory dump files are increasingly being sent over the network to attackers in order to extract credentials in a stealthier manner. We’ll use Impacket for this purpose. Powershell -c rundll32.exe C:\Windows\System32\comsvcs.dll, MiniDump [process ID of lsass.exe] dump.bin full We also found that an administrative user can use the Windows Service Control to create a service that runs our command, assign debug privileges to that service, and then run it. The parsing is only using read, seek and tell method on the file object. We just have to write some code than implements these methods but on a remote file. Powershell create lsass memory dump file SqlDumper create lsass memory dump file. APT33 : APT33 has used a variety of publicly available tools like LaZagne, Mimikatz, and ProcDump to dump credentials. Mimikatz – Dump Domain Hashes via lsass. Dump passwords from Google Chrome browser. Marked as answer by NT_pro Sunday, March 4, 2018 5:08 AM; Thursday, March 1, 2018 4:23 PM. PowerShell Empire has two modules which can retrieve domain hashes via the DCSync attack. Dumping from LSASS memory LSASS memory dump file creation. The lsass dump that we are trying to analyze is opened and then parsed. The password hashes of the domain users will retrieved. Some behaviors we commonly observe are: PowerShell and other processes (e.g., Windows Task Manager and Sysinternals ProcDump) accessing and dumping memory from the Local Security Authority Subsystem Service (lsass.exe) NTDSUtil dumping NTDS.dit (Active Directory) The Windows Task Manager may be used to dump the memory space of lsass.exe to disk for processing with a credential access tool such as Mimikatz. Create a minidump of the lsass.exe using task manager (must be running as administrator): The threat actors also executed a PowerShell script across the environment using PsExec that took advantage of comsvcs.dll to dump the lsass process and then copy the dump back to their pivot position on a domain controller. I have tested Credential Guard and you do not get the option to dump the memory of the protected lsass, and checking it with security tool the logon details of other users could not been seen. Lets hunt it source_name:"Microsoft-Windows-Sysmon" AND event_id:11 AND event_data.TargetFilename:*lsass* AND event_data.TargetFilename:*dmp. PowerSploit Out-MiniDump. # DUMP C: \U sers \u ser \A ppData \L ocal \T emp>tasklist | findstr /i lsas lsass.exe 636 Services 0 40 748 Ko powershell -c rundll32.exe C: \W indows \S ystem32 \c omsvcs.dll, MiniDump 636 %TEMP% \l sass… This settings dictates whether we will be able to use Mimikatz to extract plaintext credentials from the LSASS process memory.

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