Security

When CloudFlare Blocks Access to Your Blog

16 February 2011 12 Comments

access-restricted
CloudFlare’s Access Restricted page.

I am using CloudFlare system (thanks to LiewCF) to protect my blog from threats and limit abusive bots and crawlers from wasting my bandwidth and server resources. But the problem is, this intelligent system is currently blocking me from accessing my own blog!

It is believed my computer or another computer on my network (P1 Wimax) has been infected by a virus and being used to send spam emails and attack websites. That is why CloudFlare has to block my connection and redirect me to their Access Restricted page (as you can see above).

I have contacted CloudFlare reagarding this issue. For the time being, I have to complete the CAPTCHA if I want to access my blog. But the good thing is, I know that I can trust CloudFlare because it is really can prevent my blog from threats and malicious traffic attacks. 🙂

Use HTTPS When Login To Social Websites

20 November 2009 1 Comment

Everyday, I will login into my Facebook account to check the updates from my friends and also to reply their comments. But at the Facebook login page, I always change the protocol from HTTP to HTTPS (also known as Hyper Text Transfer Protocol with Secure Socket Layer) before I login. This is to ensure when I clicked the submit button, my username and password transmitted across the network to the Facebook server are secured.

Use HTTPS instead of HTTP

Why is it important to login using HTTPS instead of HTTP? From what I know, when you browsing using HTTP, the data sending from your browser to the server is not encrypted. A hacker with his knowledge and skills will able to capture the packets and can read the data as plain text.

Conficker Eye Chart – Has your PC been infected?

11 July 2009 Leave a Comment

It looks like my PC is clean from Conficker worm.

How to find out if your PC has been infected by Conficker worm? By browsing to Conficker Eye Chart webpage, you will get the answer.

Conficker worm blocks access to over 100 security websites and the Conficker Eye Chart displays images from several of those websites. If your browser fails to load any one of the images, then there is a good chance that your computer has been infected by Conficker.

USB WriteProtector – Protects Your USB Drives From Viruses

16 May 2009 5 Comments

We always use USB thumb drives or USB external drives as our portable storages. The size is small and lightweight make it easier for us to bring it anywhere we go. But, did you know, most of computer virus infections come from USB drives? I will tell you how the infection works in a few paragraphs later.

usb-writeprotector-01 USB WriteProtector is a freeware software that can enable or disable the write function to USB through Windows registry. When you choose, “USB write protection ON”, USB WriteProtector will change the USB write value in registry to 0. When the write function is disabled, we cannot write anything such as paste, save, or create new files in our connected USB drives. To enable the USB write function, just choose “USB write protection OFF” to allow write access to our USB drives.

Barack Obama Worm Attacks

31 January 2009 Leave a Comment

What will do if U.S. President Barack Obama’s face, pop up on your desktop every Monday morning? That is not a joke. It is the Obama worm.

The Obama worm was first spotted last Monday after it infected PCs at a preparatory school in Metairie, Luisiana and was first reported by Walling Data, a value-added reseller in Claremont, North Carolina. Because the damage is not big and only infected a few systems, the antivirus companies does not considered it as a serious threat.

It spreads via USB drive and install itself automatically when you insert the USB drive to the system. It is like the Brontok viruses where it using the Windows autorun feature to spread the attack. Luckily, Obama worm does not steal your credit card number or turn your PC into a remote-controlled zombie system. It is designed to float a small picture of Obama at the bottom right corner of your desktop all day every Monday.

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