The worm gains access to the ICQ contact list, disconnects the ICQ client which has been launched, connects to the server under the name of the user of the infected machine, and sends all contacts found a link to its own site. dll files from itself and installs them in the Windows system directory: java32.dll javaext.dll icq_socket.dll (library used to send messages via ICQ) It also steals data transmitted by HTTPS, relating to accounts of a variety of mail services such as Yahoo, etc.Īll stolen information is saved in the files ~pass.log, ~key.log and ~post.log and is sent by FTP to a remote server: The worm extracts a number of. The worm has a theft function which enables it to steal information relating to a range of financial services: Acceso a Banca por Internet Once executed, the worm copies itself under the name sysmon.exe to the SYSMON sub-directory in the Windows system directory, and registers this file in the system registry auto-run key: WinUpdate.exe is a Trojan program of the TrojanDownloader group, which downloads the main component of the worm from a remote site, and writes it to the temporary directory under the name aptgetupd.exe.Īptgetupd.exe is a PE.EXE file, of approximately 84KB (86528 bytes) in size, packed using PECompact. In Windows 2000 and Windows XP: C:Documents and SettingsAll UsersStart MenuProgramsStartupWinUpdate.exeĪnd in Windows 98: c:windowsStart MenuProgramsStartupWinUpdate.exe This Trojan extracts a file named WinUpdate.exe from itself to a range of system directories.

This file contains another file named ‘iefucker.html’ this file contains TrojanDropper, a type of Trojan written in script language. The result of this is that a specially constructed CHM file is automatically executed on the victim computer. (x here is used to replace certain characters) the CHM-exploit-a is used. The worm sends ICQ users a message with a URL, which is linked to a file which contains procedures to automatically download and execute the malicious component of the worm on the victim computer. This worm uses the Internet instant messaging system ICQ to spread via the Internet.

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