Antivirus 'success' stories: Like most other things in life, people can easily abuse port scanning tools to do things that they aren't meant to do, such as port scanning someone else's computers without permission.
Port scanning could be considered as the precursor to an attack, since an attacker for instance, can use the information about open ports on a system to locate possible vulnerable services to exploit.
The original Peer Guardian (1.0) was programmed in Visual Basic and quickly became popular among P2P users despite blocking only the common TCP protocol and being known for high RAM and CPU usage when connected to P2P networks.
By December 2003, it had been downloaded 1 million times. After 7 months of development, in February 2005 Version 2 of Peer Guardian was released as a beta.
There are four ways of holding back packages: with dpkg, apt, aptitude or dselect.
Put a package on hold: Please look at "Lock version is not as clever as it sounds.
(you can't hold a package that was never installed also see my question is the same)....
There is no virus, Angry IP scanner is not a 'real threat' to your computer.
Antivirus companies have detected Angry IP scanner as a tool that can potentially be used for malicious purposes, but the only thing it can do is scan ports, it cannot infect your computer.
The original version was released for free and the source code was made available under an open source license. The development of version 2.0 was led by Cory Nelson, and aimed to resolve many of the shortcomings of Version 1.
Due to Version 1.0 only blocking TCP ports Peer then shifted to uk where Protowall, The blocklist Manager, B. Version 2 enabled support for more protocols (TCP, UDP, ICMP, etc.), multiple block lists, and automatic updates.