Keylogger: The presence of "keystroke" or "log key" in the strings suggests the malware might be designed to record keystrokes, which is a common functionality of keyloggers.
Banking Trojan: The presence of "steal credential" suggests the malware might be involved in stealing credentials, which is a primary objective of banking trojans.
False positives: The presence of these strings doesn't guarantee the malware is definitively a keylogger or banking trojan. There could be legitimate reasons for programs to have these strings in their code.
Missing indicators: The absence of other indicators doesn't necessarily rule out the possibility of other malware types. For example, a banking trojan might not explicitly mention "banking" in its strings but could still have functionalities related to stealing financial information.
For a more comprehensive analysis, you can consider:
Examining the imported functions: Look for functions that relate to keyboard input, hooking, or network communication for keyloggers. For banking trojans, functions related to web scraping, form grabbing, or injection attacks might be present.
Static code analysis: Analyze the code itself to understand how these strings are used and what functionalities they support.
Dynamic analysis: Observe the malware's behavior in a controlled environment to see how it interacts with the system and potentially confirm its malicious intent.
By combining these techniques, malware analysts can gain a deeper understanding of the malware's capabilities and determine its true type.
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