Security


How to change MAC ADDRESS in Windows ?

 

What is MAC Address?

MAC address (Media Access Control) is the unique number (identifier) which is assigned by network interface hardware manufactures and store them into their hardware. MAC address used in hardware interface devices such as ethernet port, 802.11 wireless networks, Bluetooth adopter and still more.

The MAC address is a 12-digit hexadecimal number which is ranging between 0000 0000 0001 – FEFF FFFF FFFF. This 48-bit address space contains potentially 248 or 281,474,976,710,656 possible MAC addresses. Know about to changing MAC address in your PC is much needed one to hide your online identity, avoid potential of data losses and fight against hackers.

Here is the step by step instructions about how to change your unique MAC address into custom one. The instructions which is illustrated below just for educational purpose, not to be used for illegal activities.

Before to change the MAC address, find the current MAC address to ensure the changes after you did. Go to your command prompt and enter the command ipconfig /all and hit enter. Your Mac address will be shown as illustrated below.

Based on the screenshot, the current MAC address is FE-FF-FF-FF-FF-FE. Let we change our MAC address using the following instructions.

How to Change them in Windows XP, Vista, Windows 7 ?

For Windows XP Users

Step -1

Windows XP Users Navigate to Control Panel (Classic View) > Network Connections

Step -2

Select and right click on your network connection, and then click Properties.

Step – 3

 

Click and select local area connection properties Configure button as illustrated below.

Step – 4

Select the advanced tab (highlighted in red) as shown below.

Step – 5

 

Under advanced tab, Select Network address Properties and enter the custom 12-digit hexadecimal number (Custom MAC ID) ranging between 0000 0000 0001 – FEFF FFFF FFFF (without spaces) as shown below and click OK. (In this tutorial, we used FEFEFEFEFE as Custom MAC ID)

All done. The New MAC ID assigned as FEFEFEFEFE in your Windows XP computer. If you wish to revert back default MAC ID in feature, do the same steps illustrated above and select Not Present radio button and click OK button. So, the default MAC ID will be restored.

 

For Windows Vista Users

 

Step – 1

 

Windows Vista Users Navigate to Control Panel (Classic View) > Network and Sharing Center > Manage Network Connections

Step – 2

 

Click manage network connections and Select the appropriate Network icon, right click on it and select properties menu.

Step – 3

 

Under Properties, Click on Configure button to get into next step.

Step – 4

Under Advanced adapter settings, Select Locally administered address menu and enter the Custom MAC ID as illustrated below and click OK. You’re done. (In this tutorial we used FEFFFFFFFFFE as custom MAC ID)

You are successfully changed the MAC ID now.

 

For Windows 7 Users

 

Step – 1

 

Navigate to Control Panel > All Control Panel Items > Network and Sharing Center

Step – 2

 

From the left pan click Change Adapter settings

Step – 3

 

Select appropriate network connections adapter and click on Properties

Step – 4

 

Click Configure button to go through the next step.

Step – 5

Goto advanced tab and select the locally administered address menu, then enter thecustom MAC id you wish to change as show in the below screenshot and Click OK.

You’re done. For windows 7 operating system, we have used AAAA-AAAA-AAAA (without hyphens) as custom MAC ID.

 

To verify the MAC ID, simply go to command prompt and enter the command ipconfig /all. The custom MAC ID will be shows besides to physical address for the corresponding network adapter you have modified. To restore the default MAC ID in windows vista and Windows 7 operating system, follow the same steps as specified above (according to operating system) and click Use default button and Hit OK. The default MAC ID will be used there after.

 

Please refer to link: http://w3foru.net/how-to-change-mac-address-in-windows-xp-vista-7/


Great Malware Removal Guide (or How to remove SvcHost.exe malware)

 

This page is a comprehensive guide, which will remove the Svchost.exe infection from your your computer. Please perform all the steps in the correct order. If you have any questions or doubt at any point, STOP and ask for our assistance.
STEP 1: Remove Svchost.exe Master Boot Record infection with Kaspersky TDSSKiller
STEP 2: Run RKill to terminate Svchost.exe malicious processes
STEP 3: Remove Svchost.exe virus with Malwarebytes Anti-Malware Free
STEP 4: Remove Svchost.exe malware with RogueKiller
STEP 5:  Remove Svchost.exe infection with HitmanPro
STEP 6: Double check for any left over infections with Emsisoft Emergency Kit
STEP 7: Remove Svchost.exe adware with AdwCleaner
STEP 8: Remove Svchost.exe browser hijacker with Junkware Removal Tool

STEP 1:  Remove Svchost.exe trojan with Kaspersky TDSSKiller

As part of its self defense mechanism, Svchost.exe virus will install a ZeroAccess rootkit on the infected computer.In this first step, we will run a system scan with Kaspersky TDSSKiller to remove this rookit.

  1. Please download the latest official version of Kaspersky TDSSKiller.
    KASPERSKY TDSSKILLER DOWNLOAD LINK(This link will automatically download Kaspersky TDSSKiller on your computer.)
  2. Double-click on tdsskiller.exe to open this utility, then click on Change Parameters.
    Kaspersky TDSSKiller change settings
  3. In the new open window,we will need to enable Detect TDLFS file system, then click on OK.
    Kaspersky TDSSKiller Detect TDLFS file system
  4. Next,we will need to start a scan with Kaspersky, so you’ll need to press the Start Scan button.
    Kaspersky TDSSKiller start scan
  5. Kaspersky TDSSKiller will now scan your computer for Trojan Svchost.exe infection.
    Kaspersky TDSSKiller scan
  6. When the scan has finished it will display a result screen stating whether or not the infection was found on your computer. If it was found it will display a screen similar to the one below.
    Kaspersky TDSSKiller results
  7. To remove the infection simply click on the Continue button and TDSSKiller will attempt to clean the infection.A reboot will be require to completely remove any infection from your system.

STEP 2: Run RKill to terminate Svchost.exe malicious processes

RKill is a program that will attempt to terminate all malicious processes associated with Svchost.exe infection, so that we will be able to perform the next step without being interrupted by this malicious software.
Because this utility will only stop Svchost.exe running process, and does not delete any files, after running it you should not reboot your computer as any malware processes that are configured to start automatically will just be started again.

  1. While your computer is in Safe Mode with Networking ,please download the latest official version of RKill.Please note that we will use a renamed version of RKILL so that Proven Antivirus Protection won’t block this utility from running.
    RKILL DOWNLOAD LINK (This link will automatically download RKILL renamed as iExplore.exe)
  2. Double click on iExplore.exe to start RKill and stop any processes associated with Svchost.exe.
    [Image: RKILL Program]
  3. RKill will now start working in the background, please be patient while the program looks for Svchost.exe malicious process and tries to end them.
    [Image: RKILL stoping malware]
  4. When the Rkill utility has completed its task, it will generate a log. Do not reboot your computer after running RKill as the malware programs will start again.
    [Image: RKill Report]

STEP 3: Remove Svchost.exe virus with Malwarebytes Anti-Malware FREE

Malwarebytes Anti-Malware Free utilizes Malwarebytes powerful technology to detect and remove all traces of malware including worms, trojans, rootkits, rogues, dialers, spyware and more.

  1. You can download Malwarebytes Anti-Malware Free from the below link, then double-click on the icon named mbam-setup.exe to install this program.
    MALWAREBYTES ANTI-MALWARE DOWNLOAD LINK(This link will open a download page in a new window from where you can download Malwarebytes Anti-Malware Free)
  2. When the installation begins, keep following the prompts in order to continue with the setup process, then at the last screen click on the Finish button.
    [Image: Malwarebytes Anti-Malware final installation screen]
  3. On the Scanner tab, select Perform quick scan, and then click on the Scan button to start searching for the Svchost.exe malicious files.
    [Image: Malwarebytes Anti-Malware Quick Scan]
  4. Malwarebytes’ Anti-Malware will now start scanning your computer for Svchost.exe virus as shown below.
    [Image: Malwarebytes Anti-Malware scanning for Svchost.exe
  5. When the Malwarebytes Anti-Malware scan has finished, click on the Show Results button.
    [Image: Malwarebytes Anti-Malware scan results]
  6. You will now be presented with a screen showing you the computer infections that Malwarebytes Anti-Malware has detected. Make sure that everything is Checked (ticked), then click on the Remove Selected button.
    [Image: Malwarebytes Anti-Malwar removing Svchost.exe virus]
  7. Once your computer will restart in Windows regular mode, open Malwarebytes Anti-Malware and perform a Full System scan to verify that there are no remaining threats.

STEP 4: Remove Svchost.exe infection with RogueKiller

RogueKiller is a utility that will scan for the Svchost.exe registry keys and any other malicious files on your computer.

  1. You can download the latest official version of RogueKiller from the below link.
    ROGUEKILLER DOWNLOAD LINK (This link will open a new web page from where you can download RogueKiller on your computer)
  2. Double-click on RogueKiller.exe to start this utility and then wait for the Prescan to complete.This should take only a few seconds,  then click on the Scan button to perform a system scan.
    [Image: RogueKiller scaning for Svchost.exe virus]
  3. After the scan has completed, press the Delete button to remove Svchost.exe malicious registry keys or files.
    [Image: RogueKiller Detele button]

STEP 5: Remove Svchost.exe infection with HitmanPro

HitmanPro is a second opinion scanner, designed to rescue your computer from malware (viruses, trojans, rootkits, etc.) that have infected your computer despite all the security measures you have taken (such as anti virus software, firewalls, etc.).

  1. You can download HitmanPro from the below link:
    HITMANPRO DOWNLOAD LINK (This link will open a web page from where you can download HitmanPro)
  2. Double-click on the file named HitmanPro.exe (for 32-bit versions of Windows) orHitmanPro_x64.exe (for 64-bit versions of Windows). When the program starts you will be presented with the start screen as shown below.
    HitmanPro scanner
    Click on the Next button, to install HitmanPro on your computer.
    HitmanPro installation
  3. HitmanPro will now begin to scan your computer for Svchost.exe malware.
    HitmanPro detecting for Svchost.exe virus
  4. When it has finished it will display a list of all the malware that the program found as shown in the image below. Click on the Next button, to remove Svchost.exe virus.
    HitmanPro scan results
  5. Click on the Activate free license button to begin the free 30 days trial, and remove all the malicious files from your computer.
    [Image: HitmanPro 30 days activation button]

STEP 6: Double check for any left over infections with Emsisoft Emergency Kit

The Emsisoft Emergency Kit Scanner includes the powerful Emsisoft Scanner complete with graphical user interface. Scan the infected PC for Viruses, Trojans, Spyware, Adware, Worms, Dialers, Keyloggers and other malicious programs.

  1. You can download Emsisoft Emergency Kit from the below link,then extract it to a folder in a convenient location.
    EMSISOFT EMERGENCY KIT DOWNLOAD LINK ((This link will open a new web page from where you can download Emsisoft Emergency Kit)
  2. Open the Emsisoft Emergency Kit folder and double click EmergencyKitScanner.bat, then allow this program to update itself.
    EmergencyKitScanner.bat file
  3. After the Emsisoft Emergency Kit has update has completed,click on the Menu tab,then selectScan PC.
    Emsisoft Emergency Kit scan tab
  4. Select Smart scan and click on the SCAN button to search for “Antivirus Security 2013″ malicious files.
    Emsisoft Emergency Kit smart scan
  5. When the scan will be completed,you will be presented with a screen reporting which malicious files has Emsisoft detected on your computer, and you’ll need to click onQuarantine selected objects to remove them.
    Emsisoft Emergency Kit removing malware

STEP 7: Remove Svchost.exe adware with AdwCleaner

The AdwCleaner utility will scan your computer and web browser for the Svchost.exe malicious files, browser extensions and registry keys, that may have been installed on your computer without your knowledge.

  1. You can download AdwCleaner utility from the below link.
    ADWCLEANER DOWNLOAD LINK (This link will automatically download AdwCleaner on your computer)
  2. Before starting AdwCleaner, close all open programs and internet browsers, thendouble-click on the AdwCleaner icon.
    Picture of AdwCleaner Icon
    If Windows prompts you as to whether or not you wish to run AdwCleaner, please allow it to run.
  3. When the AdwCleaner program will open, click on the Scan button as shown below.
    Picture of AdwCleaner Scan button
    AdwCleaner will now start to search for the Svchost.exe malicious files that may be installed on your computer.
  4. To remove the Svchost.exe malicious files that were detected in the previous step, please click on the Clean button.
    Picture of AdwCleaner Clean button
  5. AdwCleaner will now prompt you to save any open files or data as the program will need to reboot the computer. Please do so and then click on the OK button. AdwCleaner will now delete all detected adware from your computer. When it is done it will display an alert that explains what PUPs (Potentially Unwanted Programs) and Adware are. Please read through this information and then press the OK button. You will now be presented with an alert that states AdwCleaner needs to reboot your computer.
    Please click on the OK button to allow AdwCleaner reboot your computer.

STEP 8: Remove Svchost.exe browser hijack with Junkware Removal Tool

Junkware Removal Tool is a powerful utility, which will remove Svchost.exe virus from Internet Explorer, Firefox or Google Chrome.

  1. You can download the Junkware Removal Tool utility from the below link:
    JUNKWARE REMOVAL TOOL DOWNLOAD LINK (This link will automatically download the Junkware Removal Tool utility on your computer)
  2. Once Junkware Removal Tool has finished downloading, please double-click on the JRT.exe icon as seen below.
    [Image: Junkware Removal Tool]
    If Windows prompts you as to whether or not you wish to run Junkware Removal Tool, please allow it to run.
  3. Junkware Removal Tool will now start, and at the Command Prompt, you’ll need to press any key to perform a scan for the Svchost.exe.
    [Image: Junkware Removal Tool scanning for Svchost.exe virus]
    Please be patient as this can take a while to complete (up to 10 minutes) depending on your system’s specifications.
  4. When the scan Junkware Removal Tool will be completed, this utility will display a log with the malicious files and registry keys that were removed from your computer.
    [Image: Junkware Removal Tool final log]

Your computer should now be free of the Svchost.exe infection.

Refer to link: http://malwaretips.com/blogs/svchost-exe-virus-removal/


Certificate error when trying to access websites

 

Certificate errors are typically caused by an incorrect date or time in your operating system’s calendar.

To check your system clock, do the following:

  1. Open your computer’s date and time settings.
  2. Verify that the appropriate month, day, and year are selected.
  3. Verify that your time zone is selected.
  4. Verify and correct time if necessary.

If you change your time zone, restart your browser.


כיצד ניתן להחתים דיגיטלית מסמך ולהעבירו באינטרנט

יצרתם מסמך בוורד או יש לכם חשבונית להעביר במייל ורוצים לחתום אותו בצורה דיגיטלית ולהעבירו במייל ?

פעלו לפי השלבים הבאים:

ראשית עליכם להתקין תוכנת הדפסת פי-די-אף חינמית שנקראת בולזיפ: – BULLZIP PDF Printer

http://www.bullzip.com

תוכנה זו תוסיף מדפסת וירטואלית באותו השם אליה תוכלו להדפיס כל זתרצו וזו תהפוך את המסמך לקובץ פי-די-אף לשמירה במחשב ולשליחתו במייל במועד שנוח לכם.

כעת שיש לנו מדפסת פי-די-אף פעילה עלינו ליצור חתימה מאובטחת בשמנו – אני ממליץ על תוכנה חינמית בשם DIGISIGNER שנותן חתימה לשנה ואף יותר כאשר חברות אחרות נותנות לשלושה חודשים.

https://www.digisigner.com

לאחר התקנת התוכנה יש להפעילה וללחוץ על: signature -> generate certificate

כעת יש למלא את פרטי החותם, אימייל וכו’… ולא לשכוח למלא סיסמא ושם קובץ ליצור.

לאחר שיצרנו ושמרנו את קובץ החתימה כעת יש להעבירו לבולזיפ וזה פשוט נעשה על ידי חלונית החתימה שם יש לומר לבולזיפ היכן שמרתם את קובץ החתימה שיצרתם מקודם.

וזה בהצלחה.


איך למצוא מכשיר אנדרואיד גנוב

נגנב או אבד מכשיר האנדרואיד שלכם ?

אולי לא תוכלו להשיבו אבל תוכלו למחוק את כל התמונות, מספרי הטלפון ובכלל כל המידע שעליו שלא יפלו לידיים לא נכונות.

כמו כן ניתן לשלוח צילצול חזק שאם ובמקרה המכשיר לא נגנב אלא רק אבד בית מתחת לספה או ששכחתם אותו במקרר – תוכלו לשמוע את הצילצול החזק וללכת בעקבותיו עד למכשיר האנדרואיד האבוד.

דרך אגב, אין צורך שהגיפיאס (GPS) יהיה מופעל.

כל שעליכם לעשות הוא לעבור לאתר google android device manager בלינק: www.google.com/android/devicemanager

התחברו עם חשבון הגוגל שנמצא על גבי האנדרואיד ובהצלחה.