Download w32 sality remover

Download w32 sality remover is a virus that spreads by infecting executable files and attempts to download potentially malicious files from the Internet. Autorun and WSality Symantec strongly recommends that customers take specific steps to control the execution of applications referenced in files that may be located on removable and network. Win32/Sality Remover download page. Download free. Win32/Sality Remover Size: Mb. Downloaded: , times. Mar 31,  · Win32 Sality Remover is licensed as freeware for Windows 32 bit and 64 bit operating system without restrictions. It is in removal tools category and is available to all software users as a free download.

Printer Friendly Page. Sality is an entry-point obscuring EPO polymorphic file infector.

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It will infect executable files on local, removable and remote shared drives. It then attempts to disable security software. Infection W Sality will infect executable files on local, removable and remote shared drives. It replaces the original host code at the entry point of the executable to redirect execution to the polymorphic viral code, which has been encrypted and inserted in the last section of the host file.

Download w32 sality remover

In addition to infecting local and remotely shared executable files, W Sality will purposely search for specific registry subkeys to infect the executable files that run when Windows starts. Functionality The W Sality family of threats has been around for some time as the first versions surfaced in and may have originated in Russia. At that time, W Sality was a less complicated file infector, prepending its viral code to a host file and having back door capability and keylogging functionality.

Over the years the core functionalities remained the same but it has become more sophisticated by including additional features that aid worm-like propagation, ensure its survival, and perform maliciously damaging activities. Among these activities is the decentralized peer-to-peer network P2P that W Sality-infected computers create and populate. As an entry-point obscuring EPO polymorphic file infector, the virus gains control of the host body by overwriting the file with complex and encrypted code instructions.

The goal of the complex code is to make analysis more difficult for researchers to see the real purpose and functionality implemented in the code. It spreads by infecting executable files on local, removable and remote shared drives. Infected files will have their original, initial instructions overwritten by complex code instructions with the encrypted viral code body located in the last section of the file.

Downloading and executing other malware or security risks is one of the primary goals of this virus. The encryption used is RC4 with static keys embedded in the compromised host. The threat also attempts to disable security software and modify security configurations.

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It alters the safe mode functionality to ensure it remains on the compromised computer. To help hide its presence and ensure continuity of execution, it will inject itself into all running processes except processes that belong to the system, the local service or the network service. Antivirus signatures W Sality W O W Q W R W S W U W V W X W Y W AB W AE W Click here for a more detailed description of Rapid Release and Daily Certified virus definitions. Prevention and avoidance 1.


Infection method 2. Functionality 3. Additional information 1. It is also advisable to disconnect removable drives when not required.

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If write access is not required, enable the read only mode if the option is available. Users should disable AutoPlay to prevent automatic launching of executable files on removable drives. More information may be found by reading this article: How to prevent a virus from spreading using the 'AutoRun' feature.

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  • Users should turn off file sharing if its use is not required. If file sharing is required, users should use ACLs and password protection to limit access. In addition to this, the use of a firewall or IDS may block or detect back door server communications with remote client applications. It is also recommended that users turn on automatic updates if available so that their computers can receive the latest patches and updates when they are made available. Block access to the following addresses using a firewall, router or add entries to the local hosts files to redirect the following addresses to Blocking the following default port at network perimeter will help to reduce the risk to your computer: UDP port 1.

    Users are advised to ensure that all network shares are only opened when they are necessary for use. Use a strong password to guard any shared folders or accounts. A strong password is a password that is of sufficient length of 8 or more characters. The password should also use a combination of numeric, capital, lowercase characters and symbols. Commonly used words from everyday language should not be used as they may easily be defeated by a dictionary attack.

    Disable the autorun feature to prevent dropped files from running automatically when a network drive is opened.

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    For more information about the autorun feature and how to disable it, please review this blog entry. Sality replaces the original host code at the entry point of the executable to redirect execution to the polymorphic viral code, which has been inserted in the last section of the host file.

    Download w32 sality remover

    Sality may iterate all available network shares and infect executable files on the remote shares. Injects itself into processes so it is able to load downloaded DLLs into target processes. Compromises security settings Infects files on local drives and removable media Downloads files and URLs Creates a peer-to-peer P2P botnet System modifications made by the virus create side effects on the compromised computer.

    Note: Side effects created by associated threats are not included in this report. Sality will not inject into processes that belong to the system, the local service or the network service.

    Win32/Sality Remover

    However, it does inject complex code instructions into other processes, allowing the code to load external DLLs that are downloaded from remote servers into target processes. This virus uses a named mutex based on the injected process ID PID for each injection so that it avoid repeatedly injecting code into the same processes.

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  • The driver blocks access to a variety of security software vendor web sites. The virus then disables security software services and ends security software processes. It also disables registry editing and the task manager. It then infects unprotected executable files on local, removable and remote shared drives. At the entry point of the executable, it replaces the original host code to redirect execution to the polymorphic viral code located in the last section of the host file.

    The flexibility of the downloader functionality lies in the continuous exchange of URL lists. Sality also contains an initial list of URLs to download and execute and may receive new URLs from other infected peers. It will either directly download, decrypt, and execute the specified binary or download a list of URLs, then download, decrypt, or execute each URL in the list. Sality participates in a peer-to-peer botnet using UDP. A variable listening port is generated minimum based on the computer name and current executable file name and in some cases defaults to The P2P protocol offers only a few commands, the most important being: Ask a peer for its list of URLs Give a peer its own URL package Ask a peer to send the IP address and port of another peer in the botnet, in order to keep the list of peers up-to-date All the peer-to-peer traffic is encrypted by means of RC4 encryption using static hard-coded keys.

    Downloading The virus downloads files based on predetermined URLs contained in exchanged lists. These files can include additional malware threats and pay per install applications. It is possible that downloaded files may be updated versions of the virus. Uploading W Sality will upload its own URL package to a peer. Other network activity None 4. Symantec Security Response encourages all users and administrators to adhere to the following basic security "best practices":.

    You may have arrived at this page either because you have been alerted by your Symantec product about this risk, or you are concerned that your computer has been affected by this risk. Before proceeding further we recommend that you run a full system scan.

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  • If that does not resolve the problem you can try one of the options available below. How to reduce the risk of infection The following resources provide further information and best practices to help reduce the risk of infection.

    Identifying and submitting suspect files Submitting suspicious files to Symantec allows us to ensure that our protection capabilities keep up with the ever-changing threat landscape. This ensures that other computers nearby are protected from attack. The following resources may help in identifying suspicious files for submission to Symantec.

    Win32 Sality Remover Free download

    How to reduce the risk of infection The following resource provides further information and best practices to help reduce the risk of infection. Performing a full system scan How to run a full system scan using your Symantec product 2. Restoring settings in the registry Many risks make modifications to the registry, which could impact the functionality or performance of the compromised computer.

    While many of these modifications can be restored through various Windows components, it may be necessary to edit the registry. See in the Technical Details of this writeup for information about which registry keys were created or modified.

    Delete registry subkeys and entries created by the risk and return all modified registry entries to their previous values.

    Download w32 sality remover

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