The IT Stuff

Packet filtering gateways,Stateful inspection firewalls,Proxy firewalls,Personal firewalls,NAT firewalls use the following Access Control Parameters to monitor the traffic
Application:HTTP Data—Kaaza, FTP—abc
Transport:TCP and UDP Port Numbers
Network:IP Addresses, Protocol, Flags
Datalink:MAC Addresses
Policy database(rules table, access control lists, firewall policies)—is a collection of access control rules based on the above parameters

HTTP:

HTTP  Code Red, Nimda Worms & Mutations
SQL Injection
Directory Traversal Attacks
MDAC Buffer Overflows
Cross-Site Scripting Attacks
Chunked Transfer Encoding Attacks

SMTP :

SMTP Worm
MIME Attacks
SPAM Attack
Command Verification Attack
SMTP Error Denial-of-Service Attack
Mailbox Denial-of-Service Attack (excessive email size)
SMTP Mail Flooding
Address Spoofing
SMTP Buffer Overflow Attacks

FTP:

FTP Bounce Attack
FTP Port Injection Attacks
Directory Traversal [...]

Known As: Win32/Conficker.A [Computer Associates], W32/Downadup.A [F-Secure], Conficker.A [Panda Software], Net-Worm.Win32.Kido.bt [Kaspersky]
Distribution
The worm is spreading through low security networks, memory sticks, and PCs without current security updates.
Method
According to Microsoft, the worm works by searching for a Windows executable file called “services.exe” and then becomes part of that code.It then copies itself into the Windows system [...]

system Process
system is a process which shows up on the tasks on mainly Windows XP, Windows 2003 server and later version of Windows. This is a default system counter and cannot be removed.
fwcagent.exe Process
fwcagent.exe is a process associated with Microsoft Internet Security and Acceleration Server 2004 from Microsoft (R) Corporation. This process should not be [...]

System idle process

It is not a process, more a counter which is displayed in Window Task Manger
Used for measuring how much idle time the CPU is having at any particular time. In other words it gives information about how much CPU Resources, as a percentage are ‘idle’ and available for use.
Cannot be killed

svchost.exe

It [...]