Tuesday 10 February 2015

#Hacking: सावधान, बैंकिंग पासवर्ड चुराने वाला वायरस Trojan.Cridex Active Now for banking passwords. warning you hit a malware site,The Trojan may arrive on the computer through phishing emails.

#Hacking: सावधान, बैंकिंग पासवर्ड चुराने वाला वायरस Trojan.Cridex Active Now for banking passwords.
warning you hit a malware site,The Trojan may arrive on the computer through phishing emails.

नई दिल्ली, 11 फरवरी 2015

Symbolic image

साइबर सुरक्षा अधिकारियों ने देश में ई-बैंकिंग करने वाले बैंक ग्राहकों से एक ऐसे ‘वॉर्म’ वायरस से सावधान रहने को कहा है कि जो कि हमला कर उनकी गोपनीय सूचनाएं और पासवर्ड चुरा लेता है. इस वायरस को क्राइडेक्स नाम दिया गया है और यह खतरनाक ट्रोजन का एक सदस्य है.
कंप्यूटर इमरजेंसी रेस्पॉन्स टीम ऑफ इंडिया (सीईआरटी-इन) ने नवीनतम परामर्श में यह जानकारी दी है. इसके मुताबिक, ‘ऐसा पाया गया है कि क्राइडेक्स मालवेयर तेजी से फैल रहा है. क्राइडेक्स सूचनाओं को चुराने वाला ई-बैंकिंग ट्रोजन है जो कि अलग अलग रिमूवेबल ड्राइव के जरिए फैलता और ऑनलाइन बैंकिंग, सोशल मीडिया को निशाना बनाकर उपयोक्ताओं के नाम और पासवर्ड आदि चुरा लेता है.’
गौरतलब है कि सीईआरटी देश में हैकिंग फिशिंग आदि से निपटने की नोडल एजेंसी है.

Trojan.Cridex

Risk Level 1: Very Low

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Discovered:: January 23, 2015
Updated:: January 26, 2015 12:14:17 PM
Type:: Trojan
Infection Length:: Varies
Systems Affected:: Windows 2000, Windows 7, Windows 95, Windows 98, Windows Me, Windows NT, Windows Server 2003, Windows Server 2008, Windows Vista, Windows XP

Trojan.Cridex is a Trojan horse that may add the compromised computer to a botnet and steal information.

Antivirus Protection Dates

Initial Rapid Release version January 23, 2015 revision 006
Latest Rapid Release version February 4, 2015 revision 033
Initial Daily Certified version January 23, 2015 revision 019
Latest Daily Certified version February 5, 2015 revision 001
Initial Weekly Certified release date January 28, 2015

Click for a more detailed description of Rapid Release and Daily Certified virus definitions.

Threat Assessment

Wild

Wild Level: Low
Number of Infections: 0 - 49
Number of Sites: 0 - 2
Geographical Distribution: Low
Threat Containment: Easy
Removal: Easy

Damage

Damage Level: Medium
Payload: Downloads potentially malicious files.
Releases Confidential Info: Steals information.

Distribution

Distribution Level: Low

Writeup By: Ling Zhou

Discovered:: January 23, 2015
Updated:: January 26, 2015 12:14:17 PM
Type:: Trojan
Infection Length:: Varies
Systems Affected:: Windows 2000, Windows 7, Windows 95, Windows 98, Windows Me, Windows NT, Windows Server 2003, Windows Server 2008, Windows Vista, Windows XP

The Trojan may arrive on the computer through phishing emails.

When the Trojan is executed, it creates the following registry entry:

HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\CLSID\[RANDOM GUID]\ShellFolder\"[RANDOM CHARACTERS]" = "[ENCRYPTED CONFIGURATION DATA]"

The Trojan then connects to one of the following remote locations to download a botnet module:

203.172.141.250:8080
74.208.11.204:8080

The botnet module is copied to the following location:

%SystemDrive%\Documents and Settings\All Users\Application Data\[RANDOM CHARACTERS].tmp

Next, the Trojan creates the following registry entry so that it runs every time Windows starts:

HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run\"wwnotify" = "rundll32.dll %SystemDrive%\Documents and Settings\All Users\Application Data\[RANDOM CHARACTERS].tmp NotifierInit"

The Trojan may then perform the following actions:

Add the compromised computer to a botnet
Communicate with other peer nodes through the peer-to-peer (P2P) protocol to retrieve configuration details
Download and execute additional modules
Download and execute additional files
Inject itself into browser processes for Internet Explorer, Chrome, and Firefox in order to monitor communications and steal information

Recommendations

Symantec Security Response encourages all users and administrators to adhere to the following basic security "best practices":

Use a firewall to block all incoming connections from the Internet to services that should not be publicly available. By default, you should deny all incoming connections and only allow services you explicitly want to offer to the outside world.
Enforce a password policy. Complex passwords make it difficult to crack password files on compromised computers. This helps to prevent or limit damage when a computer is compromised.
Ensure that programs and users of the computer use the lowest level of privileges necessary to complete a task. When prompted for a root or UAC password, ensure that the program asking for administration-level access is a legitimate application.
Disable AutoPlay to prevent the automatic launching of executable files on network and removable drives, and disconnect the drives when not required. If write access is not required, enable read-only mode if the option is available.
Turn off file sharing if not needed. If file sharing is required, use ACLs and password protection to limit access. Disable anonymous access to shared folders. Grant access only to user accounts with strong passwords to folders that must be shared.
Turn off and remove unnecessary services. By default, many operating systems install auxiliary services that are not critical. These services are avenues of attack. If they are removed, threats have less avenues of attack.
If a threat exploits one or more network services, disable, or block access to, those services until a patch is applied.
Always keep your patch levels up-to-date, especially on computers that host public services and are accessible through the firewall, such as HTTP, FTP, mail, and DNS services.
Configure your email server to block or remove email that contains file attachments that are commonly used to spread threats, such as .vbs, .bat, .exe, .pif and .scr files.
Isolate compromised computers quickly to prevent threats from spreading further. Perform a forensic analysis and restore the computers using trusted media.
Train employees not to open attachments unless they are expecting them. Also, do not execute software that is downloaded from the Internet unless it has been scanned for viruses. Simply visiting a compromised Web site can cause infection if certain browser vulnerabilities are not patched.
If Bluetooth is not required for mobile devices, it should be turned off. If you require its use, ensure that the device's visibility is set to "Hidden" so that it cannot be scanned by other Bluetooth devices. If device pairing must be used, ensure that all devices are set to "Unauthorized", requiring authorization for each connection request. Do not accept applications that are unsigned or sent from unknown sources.
For further information on the terms used in this document, please refer to the Security Response glossary.

Writeup By: Ling Zhou

Discovered:: January 23, 2015
Updated:: January 26, 2015 12:14:17 PM
Type:: Trojan
Infection Length:: Varies
Systems Affected:: Windows 2000, Windows 7, Windows 95, Windows 98, Windows Me, Windows NT, Windows Server 2003, Windows Server 2008, Windows Vista, Windows XP

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. If that does not resolve the problem you can try one of the options available below.

FOR NORTON USERS
If you are a Norton product user, we recommend you try the following resources to remove this risk.

Removal Tool

If you have an infected Windows system file, you may need to replace it using the Windows installation CD.

How to reduce the risk of infection
The following resources provide further information and best practices to help reduce the risk of infection.

FOR BUSINESS USERS
If you are a Symantec business product user, we recommend you try the following resources to remove this risk.

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. Submitted files are analyzed by Symantec Security Response and, where necessary, updated definitions are immediately distributed through LiveUpdate™ to all Symantec end points. This ensures that other computers nearby are protected from attack. The following resources may help in identifying suspicious files for submission to Symantec.

Removal Tool

If you have an infected Windows system file, you may need to replace it using the Windows installation CD.

How to reduce the risk of infection
The following resource provides further information and best practices to help reduce the risk of infection.
Protecting your business network

MANUAL REMOVAL
The following instructions pertain to all current Symantec antivirus products.

1. 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.

Writeup By: Ling Zhou

warning you hit a malware site
Keyword : banking password, virus, banking, internet banking, e-banking, password hacking