System and method for blocking harmful information online, and computer readable medium therefor

US 20030023708A1
Filed: 07/01/2002
Published: 01/30/2003
Est. Priority Date: 12/31/1999
Status: Active Grant

First Claim

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1. A method for blocking harmful information including computer viruses, the method comprising the steps of:

(a) on a computer network through which a web server and a client system are linked to each other, the web server receiving a connection request from the client system over the computer network;

(b) the web server transmitting a harmful information blocking code module to the client system; and

(c) once the transmission of the harmful information blocking code lo module is completed, the harmful information blocking code module automatically running on the client system to block in real time harmful information including computer viruses.

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Abstract

A system and method are provided for diagnosing, remedying and blocking harmful information including computer viruses online over a computer network via which a web server and a client are linked to each other. The method includes, on a computer network through which a web server and a client system are linked to each other, the web server receiving a connection request from the client system over the computer network. Then, the web server transmits a harmful information blocking code module to the client system. Once the transmission of the harmful information blocking code module is completed the harmful information blocking code module automatically runs on the client system to block in real time harmful information including computer viruses. The harmful information blocking code module is automatically transmitted to and installed in the client system only by online connecting to the harmful information management server, so that the harmful information detected on the client system can be actively blocked in real time without requiring a manual installation process.

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26 Claims

1. A method for blocking harmful information including computer viruses, the method comprising the steps of:
- (a) on a computer network through which a web server and a client system are linked to each other, the web server receiving a connection request from the client system over the computer network;
  
  (b) the web server transmitting a harmful information blocking code module to the client system; and
  
  (c) once the transmission of the harmful information blocking code lo module is completed, the harmful information blocking code module automatically running on the client system to block in real time harmful information including computer viruses.
- View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
- - 2. The method of claim 1, wherein step (c) comprises the steps of:
    - (c1) inspecting file input/output (I/O) on the client system, (c2) determining on the client system whether files inspected in step (c1) are harmful or not; and
      
      (c3) appropriately treating a file determined to be harmful in step (c2) if it can be treated, and aborting execution of a file determined to be harmful in step (c2) if it cannot be treated.
  - 3. The method of claim 2, wherein in step (c3) the web server is provided with information relating to the file determined to be harmful in step (c2).
  - 4. The method of claim 3, wherein in step (c3), if the file determined to be harmful in step (c2) cannot be treated, the file is transmitted to the web web server.
  - 5. The method of claim 2, wherein step (c3) comprises requesting the client system user'"'"'s approval for the execution of step (c3).
  - 6. The method of claim 1, wherein step (c) comprises the steps of:
    - (c1) inspecting network packet input/output (1/0) on the client system (c2) determining on the client system whether packets inspected in step (c1) are harmful or not; and
      
      (c3) if any packet is determined to be harmful, blocking a communication port assigned for the packet I/O.
  - 7. The method of claim 1, wherein the harmful information blocking code module executed in step (c) checks whether current processes running on the client system are harmful or not.
  - 8. The method of claim 1, wherein if an Internet address that the client system attempts to access is a predetermined lascivious site, the harmful information blocking code module executed in step (c) blocks access to the predetermined undesirable lascivious site.
  - 9. The method of claim 1, wherein the harmful information blocking code module executed in step (c) displays its running status in a separate window, and the execution of the harmful information blocking code module is aborted when the separate window is closed.
  - 10. The method of claim 1, wherein the harmful information blocking code module executed in step (c) continues to run on the client system even when the client system accesses another web server.
  - 11. The method of claim 1, wherein the harmful information blocking code module transmitted in step (b) is an ActiveX™
    - or Java™
      
      program.
  - 12. The method of claim 1, wherein the harmful information blocking code module has a function of detecting an unidentified computer virus by pattern comparison with an identified computer virus.

13. A method for blocking harmful information including computer viruses, the method comprising the steps of:
- (a) on a computer network through which a first web server, a second web server and a client system are linked to each other, the client system connecting to the second web server over the computer network;
  
  (b) the client system connecting to the first web server over the computer network, according to information provided from the second web server to the client system;
  
  (c) the first web server transmitting a harmful information blocking code module to the client system; and
  
  (d) once the transmission of the harmful information blocking code module is completed, the harmful information blocking code module automatically running on the client system to block in real time harmful information including computer viruses.
- View Dependent Claims (14, 15)
- - 14. The method of claim 13, wherein step (d) comprises the steps of:
    - (d1) inspecting file input/output (I/O) on the client system;
      
      (d2) determining on the client system whether files inspected in step (d1) of the client system are harmful or not; and
      
      (d3) appropriately treating a file determined to be harmful in step (d2)if it can be treated, and aborting execution of a file determined to be harmful in step (d2) if it cannot be treated.
  - 15. The method of claim 13, wherein the harmful information blocking code module executed in step (d) continues to run on the client system even when the client system accesses another web server.

16. An online service providing method for blocking harmful information including computer viruses, the method comprising the steps of:
- (a) on a computer network through which a first web server and a client system are linked to each other, constructing a homepage on the first web server for online service;
  
  (b) the first web server receiving a connection request from the client system over the computer network, and (c) the first web server transmitting a harmful information blocking code module to the client system, the harmful information blocking code lo module automatically running on the client system to block in real time harmful information including computer viruses.
- View Dependent Claims (17, 18, 19)
- - 17. The method of claim 16, wherein the connection request received by the first web server in step (b) is issued by the client system according to information provided from a second web server after the client system is connected to the second web server separated from the first web server.
  - 18. The method of claim 16, wherein the harmful information blocking code module transmitted in step (c) determines whether a file is harmful or not by inspecting file input/output (I/O) on the client system, treats a file determined to be harmful if it can be treated;
    - and aborts execution of a file determined to be harmful if it cannot be treated.
  - 19. The method of claim 16, wherein the harmful information blocking code module transmitted in step (c) continues to run on the client system even when the client system accesses another web server.

20. A system for blocking harmful information including computer viruses, comprising:
- a first web server for providing online services through a computer network; and
  
  a client computer linked with the first web server via the computer network,wherein when the client computer is connected to the first web server via the computer network, the first web server transmits a harmful information blocking code module to the client computer, and the harmful information blocking code module is automatically executed on the client computer to block in real time harmful information including computer viruses.
- View Dependent Claims (21, 22, 23, 24)
- - 21. The system of claim 20, wherein the harmful information blocking code module determines whether a file is harmful or not by inspecting file input/output (I/O) on the client system, treats a file determined to be harmful if it can be treated;
    - and aborts execution of a file determined to be harmful if it cannot be treated.
  - 22. The method of claim 20, wherein the harmful information blocking code module displays its running status on a separate window, and the execution of the harmful information blocking code module is aborted when the separate window is closed.
  - 23. The system of claim 20, further comprising a second web server linked to the client computer through the computer network to provide online services through the computer network, and wherein when the client computer is connected to the second web server through the computer network, the second web server provides the client computer with hyperlink information used to access to the first web server.
  - 24. The system of claim 20, wherein the harmful information blocking code module continues to run on the client computer even when the client computer accesses another web server.

25. A computer readable medium having recorded thereon a computer program for blocking harmful information, the computer program transmitted from a web server to a client system through a computer network, and automatically executed on the client system, wherein the blocking of harmful information comprises the step of:
- (a) inspecting file input/output (I/O) of the client system;
  
  (b) determining on the client system whether files inspected in step (a) are harmful or not;
  
  (c) appropriately treating a file determined to be harmful in step (b) if it can be treated, and aborting execution of a file determined to be harmful in step (b) if it cannot be treated; and
  
  (d) providing the web server with information relating to the file determined to be harmful in step (b).
- View Dependent Claims (26)
- - 26. The computer readable medium of claim 25, wherein in step (d), if a file determined to be harmful in step (b) cannot be treated, the harmful file is transmitted to the web server.

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Current Assignee
Choongsoo Park
Original Assignee
INCA Internet CO., LTD.
Inventors
Jung, Yeon-Sub

Granted Patent

US 7,062,552 B2
Time in Patent Office

Days
Field of Search
US Class Current

709/221
CPC Class Codes

G06F 21/56 Computer malware detection ...

G06F 21/566 Dynamic detection, i.e. det...

System and method for blocking harmful information online, and computer readable medium therefor

First Claim

4 Assignments

0 Petitions

Accused Products

Abstract

40 Citations

26 Claims

Specification

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System and method for blocking harmful information online, and computer readable medium therefor

First Claim

4 Assignments

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Subscription Required

0 Petitions

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Accused Products

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Abstract

40 Citations

26 Claims

Specification

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Solutions

Use Cases

Quick Links