Search Evasion Techniques
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Bad String Format Anti-Debugging
Bad string format is a technique used by malware to evade detection and analysis by OllyDbg, a popular debugger used by security researchers and analysts. This technique involves using malformed strings that exploit a known bug in OllyDbg, causing the debugger to crash or behave unexpectedly.
For example, the malware may use a string with multiple %s inputs, which …
Obfuscated Files or Information: Dynamic API Resolution Defense Evasion [Mitre]
Adversaries may obfuscate then dynamically resolve API functions called by their malware in order to conceal malicious functionalities and impair defensive analysis. Malware commonly uses various Native API functions provided by the OS to perform various tasks such as those involving processes, files, and other system artifacts.
API functions called by malware may leave static artifacts such as strings …