Disable UAC: The value “EnableLUA” is checked to verify whether it is necessary to disable the User Account Control in Windows Vista, Windows Server 2008 and Windows 7.In addition, one AutoRun feature is configured by creating the value “Update” in the “Run” key with the path of the script, along with hiding files and file extensions in the system. Enable CMD and REGEDIT: To perform all the changes in the system (modify the registry and execute BAT files), the edition of the registry (regedit) or the use of the command line (cmd) will be enabled by changing the values “DisableRegistryTools” and “DisableCMD” to 0.Here is a description of these functions: Each section specifies a different function of Satanbot, most of which we’ve already seen in AutoRun worms like Xirtem. This file looks like a normal executable, but it can be decoded to its original form. Once that file is decoded, we can look at the bot’s source code, which is divided by sections. However, for cases in which the user wants to avoid allowing others to view or modify the source code, Microsoft provides a command-line tool, Script Encoder, which will encode the final script by generating a. VBScript files are usually in clear text because they are interpreted at runtime, rather than being compiled previously by the author. One example of this kind of malware is Satanbot: a fully functional VBScript botnet that uses the Remote Desktop Connection to connect to infected systems. Usually the malicious code comes in a form of an executable or DLL, but sometimes malware authors opt to use alternate languages such as VBScript (Visual Basic Scripting Edition), a lightweight Active Scripting language that is installed by default in most Microsoft Windows versions since Windows 98. Most of the malicious samples are Trojans (backdoors, downloaders, fake alerts), but there are also a lot of viruses, worms, and bots that in a short time can infect many computers without user interaction. Today we have already surpassed 70 million. At the beginning of 2008, our malware collection had 10 million samples.
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