RFC - Offensive Security Notes
  • Active Directory
    • Enumeration
      • Active Directory Module
        • Enumerating the Domain
        • Enumerating ACLs
      • PowerView 3.0
      • Verify connectivity to domain controller
      • WMI domain enumeration through root\directory\ldap
      • PAM Trust
      • DNS discovery
        • Get-DnsServerZone
    • Privilege Escalation
      • Kerberos Delegation
        • Unconstrained delegation
        • Constrained delegation
        • Resource-based Constrained Delegation
      • Escalating from child to parent domain
      • Abusing inter-forest trust
      • WSUS server abuse
      • ACL Enumeration with PowerView 2.0
    • Persistence
      • Kerberos attacks
        • Golden ticket
        • Silver ticket
      • DSRM (Directory Services Restore Mode)
  • Initial Access
    • VBA Macros
      • Mark-of-the-Web
  • Discovery
    • Juicy files
      • PowerShell history
    • Network Enumeration
      • Network discovery scans
        • Ping scan
      • Nmap
      • Perimeter firewall scanning for open outbound ports
  • Execution
    • WMI
      • Remote code execution using WMI
    • PowerShell
      • C# assembly in PowerShell
        • List load assembly
        • Add-Type
        • UnsafeNativeMethods
        • DelegateType Reflection
        • Reflective Load
    • C# .Net Assembly
      • Process injection
        • Debugging
        • Using VirtualAllocEx and WriteProcessMemory
        • Using NTAPI Undocumented Functions
    • ReverseShells
      • Linux
        • Stabilizing zsh shell
    • Metasploit
      • HTTPs Meterpreter
  • Exploitation
    • Win32 APIs
      • OpenProcess
      • VirtualAllocEx
      • WriteProcessMemory
      • CreateRemoteThread
  • Credential Access
    • Microsoft Windows
      • Windows credential audit and logon types
      • Local credentials (SAM and LSA)
      • Lsass from forensics dump
      • Access Tokens
        • SeImpersonatePrivilege
      • ntds.dit
        • Dumping the contents of ntds.dit files using PowerShell
      • Mimikatz
      • LAPS
  • Lateral Movement
    • Windows Lateral Movement
      • Remote Desktop Protocol (RDP)
      • PowerShell Remoting (PS Remote)
        • Kerberos double hoping
      • Windows Task Scheduler
    • Linux Lateral Movement
  • Persistence
  • Defence Evasion
    • Antimalware Scan Interface (AMSI)
      • Debugging AMSI with Frida
      • PowerShell Bypasses
      • JS/VBA Bypasses
    • PowerShell
      • PowerShell version 2
      • Constrained Language Mode
      • Just Enough Administration (JEA)
      • ScriptBlockLogging
    • Microsoft Defender
    • Anti-virus evasion
      • Evasion and bypassing detection within C#
        • Encryptors
          • Aes encryptor
        • Sandbox evasion
          • Time accelerated checks
    • AppLocker
      • InstallUtil
      • MsBuild
  • Network Pivoting
    • Proxies and port fowarding
      • SSH
      • Metasploit
      • Socat
      • SSH Shuttle
      • Windows netsh command
    • Network discovery and scanning
  • Exfiltration
    • Windows
      • Copy files over SMB
  • Services
    • MS SQL Server
      • Enumeration
      • UNC Path Injection
      • Privilege Escalation
      • Linked Servers
      • SQL Injection
  • Misc
    • CrackMapExec
    • Cheat sheets
  • Cloud
    • Azure
      • Authentication
      • Enumeration
        • AzureHound
        • Az.Powershell
        • Microsoft Graph PowerShell
      • Initial Access
        • Device Code Phishing
        • Family-Of-Client-Ids - FOCI
        • JWT Assertion
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On this page
  • Syntax
  • Parameters
  1. Exploitation
  2. Win32 APIs

WriteProcessMemory

PreviousVirtualAllocExNextCreateRemoteThread

Last updated 2 years ago

Syntax

BOOL WriteProcessMemory(
  [in]  HANDLE  hProcess,
  [in]  LPVOID  lpBaseAddress,
  [in]  LPCVOID lpBuffer,
  [in]  SIZE_T  nSize,
  [out] SIZE_T  *lpNumberOfBytesWritten
);

Parameters

[in] hProcess

A handle to the process memory to be modified. The handle must have PROCESS_VM_WRITE and PROCESS_VM_OPERATION access to the process.

[in] lpBaseAddress

A pointer to the base address in the specified process to which data is written. Before data transfer occurs, the system verifies that all data in the base address and memory of the specified size is accessible for write access, and if it is not accessible, the function fails.

[in] lpBuffer

A pointer to the buffer that contains data to be written in the address space of the specified process.

[in] nSize

The number of bytes to be written to the specified process.

[out] lpNumberOfBytesWritten

A pointer to a variable that receives the number of bytes transferred into the specified process. This parameter is optional. If lpNumberOfBytesWritten is NULL, the parameter is ignored.

WriteProcessMemory function (memoryapi.h) - Win32 appsdocsmsft
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