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Process Camouflage, Masquerading
Masquerading is a technique used by malware to evade detection by disguising itself as a legitimate file. This is typically achieved by renaming the malicious file to match the name of a commonly found and trusted file, such as svchost.exe, and placing it in a legitimate folder.
Masquerading can occur when the name or location of an executable, …
Read moreRootkit
![Defense Evasion [Mitre] icon](/media/2024/04/08/icons8-burglar.svg){kind=small}
Adversaries may use rootkits to hide the presence of programs, files, network connections, services, drivers, and other system components. Rootkits are programs that hide the existence of malware by intercepting/hooking and modifying operating system API calls that supply system information.
Rootkits or rootkit enabling functionality may reside at the user or kernel level in the operating system or lower, …
Read moreSystem Binary Proxy Execution: Regsvr32
Adversaries may abuse Regsvr32.exe to proxy execution of malicious code. Regsvr32.exe is a command-line program used to register and unregister object linking and embedding controls, including dynamic link libraries (DLLs), on Windows systems. The Regsvr32.exe binary may also be signed by Microsoft.
Malicious usage of Regsvr32.exe may avoid triggering security tools that may not monitor execution of, and modules …
Read moreValid Accounts: Domain Accounts
Adversaries may obtain and abuse credentials of a domain account as a means of gaining Initial Access, Persistence, Privilege Escalation, or Defense Evasion. Domain accounts are those managed by Active Directory Domain Services where access and permissions are configured across systems and services that are part of that domain. Domain accounts can cover users, administrators, and services.
Adversaries may …
Read moreChecking Pipe
Cuckoo is an open-source automated malware analysis system that performs dynamic analysis by running suspicious files in isolated virtual environments.
To facilitate communication between the host system (analysis environment) and the guest system (execution environment), Cuckoo uses a named pipe: \.\pipe\cuckoo
Detection Technique
Malware running inside the guest can check for the existence of this named pipe. …
Read moreCustom Encoding
Malware often uses custom encoding schemes to conceal their payloads and avoid detection. These custom schemes can be full custom layers, or they can be variations of known algorithms such as XOR or Base64. Using custom encoding schemes allows malware to encode their payloads in a unique way that can be difficult for security tools and forensic investigators to detect.
… Read moreIndicator Removal: Clear Windows Event Logs
Event logging is a process that records important software and hardware events from various sources and stores them in a centralized location called an event log. This service is commonly used by applications and operating systems to track and troubleshoot issues, and can be a valuable tool for forensic investigations.
Event logs can provide valuable information about the actions …
Read moreHiding Mechanisms
Malware often uses various techniques to hide its presence on a system and avoid detection. One common method is to modify or create entries in the system registry, which is a database of configuration settings for the operating system and installed applications. By modifying these settings, malware can hide itself from security software or other programs that might detect its …
Read moreTor Network C2
Tor is a free and open-source network that enables anonymous communication. It uses a network of volunteer-operated servers, known as "relays," to route internet traffic in a way that conceals the user's location and usage from surveillance and traffic analysis. By routing traffic through multiple relays, Tor makes it difficult to trace internet activity back to the user.
Malware …
Read moreKilling Windows Event Log
Killing the Windows Event Log is a technique used by malware to prevent security professionals from detecting and analyzing it. Svchost.exe is a process that manages services on Windows operating systems.
By grouping multiple services into a single process, Svchost.exe conserves computing resources and reduces resource consumption. However, this also means that Svchost.exe manages the Event Log service, which …
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