FlexHex

BWO!FlexHex!CSS

  03 November 2004

Description

Microsoft Internet Explorer contains a bug which means that it is very liberal in its interpretation of hexadecimal values in colors. Missing digits are treated as 0 also. An incorrect digit is simply interpreted as 0. For example the values #F0F0F0, F0F0F0, F0F0F, #FxFxFx and FxFxFx are all the same. This can be used to refresh tricks like Invisible Ink and Camouflage.

Submitted by Edy Hinzen.

Example

<font size="1" style="font-size: 1px" color="#FqFeFm">b</font>

Quick Links

Poll
The Japanese government is reported to have commissioned a 'defensive virus'. Is 'defensive' malware ever a good idea?
Yes
No
I don't know
Leave a comment
View 11 comments

99 Subscription Promo

VB100 certification
VB100 This month's VB100 test saw some major changes and a radical overhaul of the VB100 test methodology - for the first time allowing products to use their 'cloud' look-up systems. John Hawes has all the details.
See full results.

Virus Bulletin currently has 224,242 registered users.