Skip to main content

Login with admin privilege can make matters worse

Many windows users don't know that they login with administrator privileges. When viruses or worms attack, they use the user's privileges and they can make a catastrophe.

A new analysis claims that over 90% of the Windows security vulnerabilities reported last year were made worse by users logged in with administrative privileges -- an issue Microsoft has been hotly debating recently.

BeyondTrust Corp. (BTC), a software development company specializing in enterprise rights management, has indicated that the act of giving users administrative rights may leave systems more open to risk.

The report issued by BTC was prepared by assessing security vulnerability bulletins released by Microsoft in 2008, and identifying specific "mitigating factors" (those that could reduce or negate the risk of an attack) within the bulletin. If Microsoft reported that having fewer security privileges would negate or eliminate risk, BTC concluded that the vulnerability was admin-privilege related.

The result of the analysis of the 154 critical Microsoft vulnerabilities indicated that a full 92% could have been prevented if users were not logged into their systems with administrator status. BTC believes that restricting the number of users who can log in with these privileges will "close the window of opportunity" for attackers. This is particularly true for users of Internet Explorer and Microsoft Office. (Source:

Microsoft has been relatively transparent in their revelation of security vulnerabilities, and has worked with organizations such as to identify and address security concerns to the online community. (Source:

While Microsoft is not denying the vulnerabilities present in its various Windows operating systems, they have not been exactly forthright about how internal programming "holes" (such as increased vulnerability for users with admin privileges) may make users susceptible to threats or attacks.

I think Microsoft users should be told that using admin privilege accounts is a potential security risk. I found out that many of them don't want to use normal/limited account for their daily account.

Linux users always use ordinary account (non-root acount) to do tasks that do not require admin/root privileges. Ubuntu users for example used to sudo command to do admin tasks like installing packages, upgrade packages etc. Other Linux users are very familiar with su command to do the same tasks. Certain apps will warn you if you run them as admin (ie root). This way Linux users reduce the risks of being infected or attacked by viruses, worms and other types of malwares.



Popular posts from this blog

mplayer-gui error : Error in skin config file

After installing mplayer-gui package, I can't start it.

$ gmplayer MPlayer 1.1-4.8 (C) 2000-2012 MPlayer Team mplayer: could not connect to socket mplayer: No such file or directory Failed to open LIRC support. You will not be able to use your remote control. Error in skin config file on line 6: PNG read error in /usr/share/mplayer/skins/default/main Config file processing error with skin 'default'
After googling a bit, I found out that it was due to the png files in dir /usr/share/mplayer/skins/default. This is the default skin directory. To fix this error, I have to install ImageMagick package because I want to use the convert program to convert all of the png files to format png24. Thus, cd /usr/share/mplayer/skins/default; for FILE in *.png ; do sudo convert $FILE -define png:format=png24 $FILE ; done
Rerun gmplayer and all should be fine.
Have fun!
UPDATE (02-10-2017)

It doesn't work on Ubuntu 16.04 (xenial) but there's a workaround here.

You can update your syst…

Moving your mysql database to another hard disk

Recently, my server's only hard disk was almost full. I bought a new hard disk with bigger size and I decided to just add it as a second hard disk. Since I need to move it to the 2nd hard disk, I need to find a proper way to move the db with minimum downtime. So I googled around and found a solution.
First, I needed to format the 2nd hard disk and I chose xfs as the filesystem. I created 2 partitions using Linux's fdisk for this task. First partition is 10 GB and 2nd one is around 900 GB. That's approximately added up to 1 TB. Then I mounted the 2nd partition in current partition eg /media/hd2 as follows:
mount -t xfs /dev/sdb5 /media/hd2
where /dev/sdb5 is the partition and /media/hd2 is the mounting dir.
Stop mysql db before doing anything:
service mysql stop
Afterthat, I copied the entire db to newly mounted hard disk:
cp -rv /var/lib/mysql /media/hd2
It will take a while if you have huge databases.
Then, change the ownership of the dir to user and group of mysql:
chown -R mysql:…

Transparent proxy with squid 2.6

I have upgraded my squid from 2.5 STABLE13 to 2.6 STABLE18. Transparent proxy is setup differently in this version. You need this directives in squid.conf (usually in /etc or /usr/local/etc or /usr/local/squid/etc, check with your distro).

acl our_networks src
http_access allow our_networks
http_port transparent
always_direct allow all

where is your proxy server IP address.

If you have flushed your iptables, create new rule:

iptables -t nat -A PREROUTING -i eth0 -p tcp –dport 80 -j REDIRECT –to-port 3128

where 3128 is the port where squid is running.