25.03.2007  Eightieth weekly add-on for Dr.Web® 4.33

Eightieth weekly add-on increases number of Dr.Web® virus records on 906.

18.03.2007  Seventy-ninth weekly add-on for Dr.Web® 4.33

Seventy-ninth weekly add-on increases number of Dr.Web® virus records on 1485.

11.03.2007  Seventy-eighth weekly add-on for Dr.Web® 4.33

Seventy-eighth weekly add-on increases number of Dr.Web® virus records on 1633.

04.03.2007  Seventy-seventh weekly add-on for Dr.Web® 4.33

Seventy-seventh weekly add-on increases number of Dr.Web® virus records on 1633.

25.02.2007  Seventy-sixth weekly add-on for Dr.Web® 4.33

Seventy-sixth weekly add-on increases number of Dr.Web® virus records on 1633.

18.02.2007  Seventy-fifth weekly add-on for Dr.Web® 4.33

Seventy-fifth weekly add-on increases number of Dr.Web® virus records on 1633.

11.02.2007  Seventy-fourth weekly add-on for Dr.Web® 4.33

Seventy-fourth weekly add-on increases number of Dr.Web® virus records on 2090.

04.02.2007  Seventy-third weekly add-on for Dr.Web® 4.33

Seventy-third weekly add-on increases number of Dr.Web® virus records on 1252.

28.01.2007  Seventy-second weekly add-on for Dr.Web® 4.33

Seventy-second weekly add-on increases number of Dr.Web® virus records on 1289.

21.01.2007  Seventy-first weekly add-on for Dr.Web® 4.33

Seventy-first weekly add-on increases number of Dr.Web® virus records on 2370.

15.01.2007  Seventieth weekly add-on for Dr.Web® 4.33

Seventieth weekly add-on increases number of Dr.Web® virus records on 2022.

07.01.2007  Sixty-ninth weekly add-on for Dr.Web® 4.33

Sixty-ninth weekly add-on increases number of Dr.Web® virus records on 687.

31.12.2006  Sixty-eighth weekly add-on for Dr.Web® 4.33

Sixty-eighth weekly add-on increases number of Dr.Web® virus records on 1099.

24.12.2006  Sixty-seventh weekly add-on for Dr.Web® 4.33

Sixty-seventh weekly add-on increases number of Dr.Web® virus records on 1834.

17.12.2006  Sixty-sixth weekly add-on for Dr.Web® 4.33

Sixty-sixth weekly add-on increases number of Dr.Web® virus records on 4015.

10.12.2006  Sixty-fifth weekly add-on for Dr.Web® 4.33

Sixty-fifth weekly add-on increases number of Dr.Web® virus records on 1342.

03.12.2006  Sixty-fourth weekly add-on for Dr.Web® 4.33

Sixty-fourth weekly add-on increases number of Dr.Web® virus records on 1335.

26.11.2006  Sixty-third weekly add-on for Dr.Web® 4.33

Sixty-third weekly add-on increases number of Dr.Web® virus records on 1153.

19.11.2006  Sixty-second weekly add-on for Dr.Web® 4.33

Sixty-second weekly add-on increases number of Dr.Web® virus records on 1006.

12.11.2006  Sixty-first weekly add-on for Dr.Web® 4.33

Sixty-first weekly add-on increases number of Dr.Web® virus records on 880.

05.11.2006  Sixtieth weekly add-on for Dr.Web® 4.33

Sixtieth weekly add-on increases number of Dr.Web® virus records on 988.

29.10.2006  Fifty-ninth weekly add-on for Dr.Web® 4.33

Fifty-ninth weekly add-on increases number of Dr.Web® virus records on 1205.

22.10.2006  Fifty-eighth weekly add-on for Dr.Web® 4.33

Fifty-eighth weekly add-on increases number of Dr.Web® virus records on 1139.

15.10.2006  Fifty-seventh weekly add-on for Dr.Web® 4.33

Fifty-seventh weekly add-on increases number of Dr.Web® virus records on 1302.

08.10.2006  Fifty-sixth weekly add-on for Dr.Web® 4.33

Fifty-sixth weekly add-on increases number of Dr.Web® virus records on 1332.

01.10.2006  Fifty-fifth weekly add-on for Dr.Web® 4.33

Fifty-fifth weekly add-on increases number of Dr.Web® virus records on 2456.

24.09.2006  Fifty-fourth weekly add-on for Dr.Web® 4.33

Fifty-fourth weekly add-on increases number of Dr.Web® virus records on 1283.

17.09.2006  Fifty-third weekly add-on for Dr.Web® 4.33

Fifty-third weekly add-on increases number of Dr.Web® virus records on 795.

10.09.2006  Fifty-second weekly add-on for Dr.Web® 4.33

Fifty-second weekly add-on increases number of Dr.Web® virus records on 2016.

03.09.2006  Fifty-first weekly add-on for Dr.Web® 4.33

Fifty-first weekly add-on increases number of Dr.Web® virus records on 943.

27.08.2006  Fiftieth weekly add-on for Dr.Web® 4.33

Fiftieth weekly add-on increases number of Dr.Web® virus records on 1020.

20.08.2006  Forty-ninth weekly add-on for Dr.Web® 4.33

Forty-ninth weekly add-on increases number of Dr.Web® virus records on 1008.

13.08.2006  Forty-eighth weekly add-on for Dr.Web® 4.33

Forty-eighth weekly add-on increases number of Dr.Web® virus records on 1096.

06.08.2006  Forty-seventh weekly add-on for Dr.Web® 4.33

Forty-seventh weekly add-on increases number of Dr.Web® virus records on 707.

30.07.2006  Forty-sixth weekly add-on for Dr.Web® 4.33

Forty-sixth weekly add-on increases number of Dr.Web® virus records on 1429.

23.07.2006  Forty-fifth weekly add-on for Dr.Web® 4.33

Forty-fifth weekly add-on increases number of Dr.Web® virus records on 1358.

16.07.2006  Forty-fourth weekly add-on for Dr.Web® 4.33

Forty-fourth weekly add-on increases number of Dr.Web® virus records on 694.

09.07.2006  Forty-third weekly add-on for Dr.Web® 4.33

Forty-third weekly add-on increases number of Dr.Web® virus records on 1186.

02.07.2006  Forty-second weekly add-on for Dr.Web® 4.33

Forty-second weekly add-on increases number of Dr.Web® virus records on 744.

25.06.2006  Forty-first weekly add-on for Dr.Web® 4.33

Forty-first weekly add-on increases number of Dr.Web® virus records on 841.

18.06.2006  Fortieth weekly add-on for Dr.Web® 4.33

Fortieth weekly add-on increases number of Dr.Web® virus records on 822.

11.06.2006  Thirty-ninth weekly add-on for Dr.Web® 4.33

Thirty-ninth weekly add-on increases number of Dr.Web® virus records on 1071.

04.06.2006  Thirty-eighth weekly add-on for Dr.Web® 4.33

Thirty-eighth weekly add-on increases number of Dr.Web® virus records on 989.

28.05.2006  Thirty-seventh weekly add-on for Dr.Web® 4.33

Thirty-seventh weekly add-on increases number of Dr.Web® virus records on 855.

21.05.2006  Thirty-sixth weekly add-on for Dr.Web® 4.33

Thirty-sixth weekly add-on increases number of Dr.Web® virus records on 1297.

14.05.2006  Thirty-fifth weekly add-on for Dr.Web® 4.33

Thirty-fifth weekly add-on increases number of Dr.Web® virus records on 1195.

07.05.2006  Thirty-fourth weekly add-on for Dr.Web® 4.33

Thirty-fourth weekly add-on increases number of Dr.Web® virus records on 900.

30.04.2006  Thirty-third weekly add-on for Dr.Web® 4.33

Thirty-third weekly add-on increases number of Dr.Web® virus records on 1381.

23.04.2006  Thirty-second weekly add-on for Dr.Web® 4.33

Thirty-second weekly add-on increases number of Dr.Web® virus records on 1341.

16.04.2006  Thirty-first weekly add-on for Dr.Web® 4.33

Thirty-first weekly add-on increases number of Dr.Web® virus records on 2736.

09.04.2006  Thirtieth weekly add-on for Dr.Web® 4.33

Thirtieth weekly add-on increases number of Dr.Web® virus records on 2080.

02.04.2006  Twenty-ninth weekly add-on for Dr.Web® 4.33

Twenty-ninth weekly add-on increases number of Dr.Web® virus records on 2491.

26.03.2006  Twenty-eighth weekly add-on for Dr.Web® 4.33

Twenty-eighth weekly add-on increases number of Dr.Web® virus records on 743.

19.03.2006  Twenty-seventh weekly add-on for Dr.Web® 4.33

Twenty-seventh weekly add-on increases number of Dr.Web® virus records on 958.

12.03.2006  Twenty-sixth weekly add-on for Dr.Web® 4.33

Twenty-sixth weekly add-on increases number of Dr.Web® virus records on 793.

05.03.2006  Twenty-fifth weekly add-on for Dr.Web® 4.33

Twenty-fifth weekly add-on increases number of Dr.Web® virus records on 713.

26.02.2006  Twenty-fourth weekly add-on for Dr.Web® 4.33

Twenty-fourth weekly add-on increases number of Dr.Web® virus records on 655.

19.02.2006  Twenty-third weekly add-on for Dr.Web® 4.33

Twenty-third weekly add-on increases number of Dr.Web® virus records on 655.

12.02.2006  Twenty-second weekly add-on for Dr.Web® 4.33

Twenty-second weekly add-on increases number of Dr.Web® virus records on 778.

5.02.2006  Twenty-first weekly add-on for Dr.Web® 4.33

Twenty-first weekly add-on increases number of Dr.Web® virus records on 846.

29.01.2006  Twentieth weekly add-on for Dr.Web® 4.33

Twentieth weekly add-on increases number of Dr.Web® virus records on 808.

22.01.2006  Nineteenth weekly add-on for Dr.Web® 4.33

Nineteenth weekly add-on increases number of Dr.Web® virus records on 764.

15.01.2006  Eighteenth weekly add-on for Dr.Web® 4.33

Eighteenth weekly add-on increases number of Dr.Web® virus records on 840.

08.01.2006  Seventeenth weekly add-on for Dr.Web® 4.33

Seventeenth weekly add-on increases number of Dr.Web® virus records on 366.

01.01.2006  Sixteenth weekly add-on for Dr.Web® 4.33

Sixteenth weekly add-on increases number of Dr.Web® virus records on 730.

25.12.2005  Fifteenth weekly add-on for Dr.Web® 4.33

Fifteenth weekly add-on increases number of Dr.Web® virus records on 627.

18.12.2005  Fourteenth weekly add-on for Dr.Web® 4.33

Fourteenth weekly add-on increases number of Dr.Web® virus records on 825.

11.12.2005  Thirteenth weekly add-on for Dr.Web® 4.33

Thirteenth weekly add-on increases number of Dr.Web® virus records on 842.

04.12.2005  Twelfth add-on for Dr.Web® 4.33

Twelfth add-on increases number of Dr.Web® virus records on 830.

27.11.2005  Eleventh add-on for Dr.Web® 4.33

Eleventh add-on increases number of Dr.Web® virus records on 862.

20.11.2005  Tenth add-on for Dr.Web® 4.33

Tenth add-on increases number of Dr.Web® virus records on 853.

13.11.2005  Ninth add-on for Dr.Web® 4.33

Ninth add-on increases number of Dr.Web® virus records on 733.

06.11.2005  Eighth add-on for Dr.Web® 4.33

Eighth add-on increases number of Dr.Web® virus records on 708.

30.10.2005  Seventh add-on for Dr.Web® 4.33

Seventh add-on increases number of Dr.Web® virus records on 839.

23.10.2005  Sixth add-on for Dr.Web® 4.33

Sixth add-on increases number of Dr.Web® virus records on 934.

16.10.2005  Fifth add-on for Dr.Web® 4.33

Fifth add-on increases number of Dr.Web® virus records on 760.

09.10.2005  Fourth add-on for Dr.Web® 4.33

Fourth add-on increases number of Dr.Web® virus records on 721.

02.10.2005  Third add-on for Dr.Web® 4.33

Third add-on increases number of Dr.Web® virus records on 638.

27.09.2005  Dr.Web® version 4.33

New version 4.33 of Dr.Web® family released on September 27, 2005.

Among other main improvements and amendments implemented in version 4.33 are the following:

• The number of known packers is essentially increased
• Detection of Spyware/Adware/Riskware is added
• Background scanning of objects loaded into memory is implemented
• Checking of the started processes at updating of virus bases is added
• Protection of a configuration file (drweb32.ini) from not authorized changes is implemented

Version 4.33 provides a multi-level anti-virus protection system which is able to detect and cure all existing kinds of viruses, worms, trojans and other malware including Adware and Spyware. The Dr.Web's heuristic analyzer has undergone radical improvements and now is able to prevent a dramatically higher number of unknown dangerous codes from penetrating the protected system.

In new version the size of the new virus definition bases has been reduced even more, due to the technological improvement of the engine though they have been extended with the new types of the virus bases for detection of Spyware/Adware/Riskware.