It has been providing services for investigations since then and is used in the SANS Training FOR610 course and referenced in many articles and videos. The ‘strings section’ of the sample analyzed is presented below.The development of pestudio started in 2009. When the number of readable characters is reduced, the application could be packed or obfuscated. In examining the ‘strings section’, the analyst is trying to identify readable strings, such as IPs and URLs, and filenames that can be used during the investigation. All the strings from the executable are parsed and placed in this section. Describe types of malware, including rootkits, Trojans, and viruses. The ‘strings section’ is also a useful source of information for the analyst. Using this functionality, the malware creator can hide code inside the TLS (Thread Local Storage) that will be executed before Windows OS creates the process. This code will be executed before the entry point. The section ‘ tls-callback’ has the code that will set up the environment, so the application can run. If the malicious application has dropper5 functionalities, the files that are written on the disk could be stored in the ‘.rsrc’ section. The ‘resources section’ usually stores the information related to UI (icons or custom window elements).
Obfuscation is widely used in malware, especially crimeware.
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