VIRUUUS ...!!!!
Mar 27, 2009
Virus adalah program buatan manusia yang dapat memperlambat kinerja sistem, merugikan atau bahkan merusak sistem. Program ini mempunyai kemampuan untuk mengembang atau menyebar yang telah diatur di dalam program tersebut.
Virus adalah Kode yang ditempelkan dalam satu program yang menyebabkan pengkopian dirinya disisipkan ke satu program lain atau lebih. Program menginfeksi program-program lain dengan memodifikasi program-program itu. Modifikasi itu termasuk memasukkan kopian program program virus yang kemudian dapat menginfeksi program-program lain. Selain hanya propagasi, salah satu program jahat ini biasanya melakukan fungsi yang tak diinginkan.
Seperti virus biologis, pada virus komputer terdapat kode instruksi yang dapat membuat kopian sempurna seperti dirinya. Ketika komputer yang terinfeksi berhubungan (kontak) dengan perangkat lunak yang belum terinfeksi, kopian virus memasuki program baru. Infeksi dapat menyebar dari komputer satu ke yang lainnya melalui disk yang digunakan pemakai, atau mengirimkan program melaui jaringan. Pada lingkungan jaringan, kemampuan mengakses aplikasi dan layanan-layanan komputer lain merupakan fasilitas sempurna penyebaran virus.
Sebuah virus dapat berisi rutin-rutin tertentu yang diisikan oleh programmer virus. Rutin-rutin ini bisa saja berisi perintah perusakan atau hanya sekedar menampilkan pesan.
Virus Resident adalah Program virus yang menetap di memori.
Siklus hidup virus. Virus mengalami siklus hidup empat fase, yaitu:
1. Fase tidur (dormant phase),
2. Fase propaganda (propagation phase),
3. Fase pemicuan (triggering phase),
4. Fase eksekusi (execution phase).
dan Anti Virus adalah program untuk melacak keberadaan dan mengamankan virus pada media penyimpanan, baik pada disk maupun memory.
saat ini banyak beredar antivirus di internet, diantaranya ...
1. Kaspersky Internet Security 2009
Essential Protection
Protects from viruses, Trojans and worms
Blocks spyware and adware
Scans files in real time (on access) and on demand
Scans email messages (regardless of email client)
Scans Internet traffic (regardless of browser)
Protects instant messengers (ICQ, MSN)
Provides proactive protection from unknown threats
Scans Java and Visual Basic scripts
Extended Protection
Two-way personal firewall
Safe Wi-Fi and VPN connections
Intrusion prevention system
Intelligent application management and control
automatically configured application rules
security rating is assigned to unknown applications
access to the user’s resources and data is restricted for unknown applications
Preventive Protection
Scans operating system and installed applications for vulnerabilities
Analyzes and closes Internet Explorer vulnerabilities
Disables links to malware sites
Detects viruses based on the packers used to compress code
Global threat monitoring (Kaspersky Security Network)
Advanced Protection & Recovery
The program can be installed on infected computers
Self-protection from being disabled or stopped
Restores correct system settings after removing malicious software
Tools for creating a rescue disk
Data & Identity Theft Protection
Disables links to fake (phishing) websites
Blocks all types of keyloggers
Virtual keyboard is provided for safely entering logins and passwords
Prevents the theft of data exchanged via secure connections (HTTPS / SSL)
Blocks unauthorized dial-up connections
Cleans up any traces of user activity (deletes temporary files, cookies etc.)
Content Filtering
Parental control
Improved antispam protection (plugins for Microsoft Outlook, Microsoft Outlook Express, The Bat!, Thunderbird)
Blocks banners on web pages
Usability
Automatic configuration during installation
Wizards for common tasks
Visual reports with charts and diagrams
Alerts provide all the information necessary for informed user decisions
Automatic or interactive mode
Round-the-clock technical support
Automatic database updates
2. BitDefender Total Security 2009
BitDefender Total Security 2009 provides comprehensive proactive protection against all Internet security threats, along with system maintenance and backup, without slowing down your PCs.
Confidently download, share and open files from friends, family, co-workers – and even total strangers!
Improved: Scans all web, e-mail and instant messaging traffic for viruses and spyware, in real-time
Proactively protects against new virus outbreaks using advanced heuristics
Protect your identity: shop, bank, listen, watch privately and securely
Blocks attempted identity theft (phishing)
Improved: Prevents personal information from leaking via e-mail, web or instant messaging
Guard your conversations with top-of-the line encryption
NEWInstant Messaging Encryption
NEWFile Vault securely stores personal information or sensitive files
Backs up files and folders locally
NEWProvides secure on-line storage
Connect securely to any network at home, in the office or away
Automatically modifies firewall protection settings to suit location
Wi-Fi monitor helps prevent unauthorized access to your Wi-Fi network
Protect your family and their computers!
Blocks access to inappropriate websites and e-mail
Schedules and limits kids’ access to Internet and to applications
Play safe, play seamlessly!
Improved: Reduces the system load and avoids requesting user interaction during games
Get fine-tuned performance from your computer !
Uses few system resources
NEWLaptop mode prolongs battery life
Removes unnecessary duplicates of files and registry entries
Irrecoverably erases unwanted files and "traces" of files
