Panda Cloud Antivirus

Today we are releasing a new version of Panda Cloud Antivirus, version 1.0.1. This version is basically a cumulative-fix release which incorporates Hotfix-1, Hotfix-2 and some small additional improvements.

The most notable improvement is that we have gotten rid of the initial account registration which used to be mandatory for first-time installs. Panda Cloud Antivirus will not ask for account during install anymore. Only if you want to participate in the Cloud Antivirus Support Forums will you need to create an account.

I have Cloud Antivirus 1.0 already installed. Do I need to download & install this version?
Not really. This new version incorporates hotfixes which you probably already have installed anyway. To check if you have them installed, simply browse to “C:\Documents and Settings\All Users” (XP) and you should see a subdirectory called “HF_PCA_somenumber”.

I have the hotfixes installed but I still have some problems with Panda Cloud Antivirus. Should I install this version?
Yes you might want to give it a try. Below you can find some more detail of what this version fixes which is not included in the existing hotfixes. In order to install this version on top of the one you already have, first uninstall your current version, then reboot and finally download & install the new version from http://acs.pandasoftware.com/cloud/CloudAntivirus.exe.

What’s the changelog of this version 1.0.1?

1. Preactivated version does not require account creation during install
2. Fix for certain conditions of stuck quick & full scan
3. Improved cloud-heuristic detection for unknown malware - From HF_2
4. Improved prevalence algorithms for priorization of new malware - From HF_2
5. Fix of problems scanning certain files in system directories - From HF_1
6. Fix for loss of connectivity after malware disinfection involving LSP - From HF_1
7. Improved cloud-heuristic detection - From HF_1

   
I would like to announce that Panda Cloud Antivirus, the best free antivirus, has received the official Windows 7 certification for 32 & 64 bits from Microsoft Corporation.

More details can be found here.

     
We have just uploaded a new poll to find out what was your previous antivirus before you installed Panda Cloud Antivirus.

You can participate and cast your vote here:
http://www.cloudantivirus.com/forum/poll.jspa?pollID=50051

Note: you will need an active Cloud Antivirus forum account to vote.

EDIT: I just reset the poll as some users reported problems submitting their votes. If you did submit correctly before, please vote again.

     
Which feature would you most like to see in the next version Panda Cloud Antivirus?

Take the poll and help us design the next versions of your new favourite antivirus:
http://www.cloudantivirus.com/forum/poll.jspa?pollID=50103

Panda Cloud Antivirus Beta is finished. Version 1.0 is finally here!

First of many thanks to the millions of beta testers and specifically to those who have given us feedback and helped improve the product. We think we have fixed all the issues you have reported.

If you have any of the previous versions installed (Beta1, Beta2 or Beta3) do the following:
1- Uninstall your current version.
2- Reboot your computer.
3- Download version 1.0 from http://www.cloudantivirus.com and install.
4- If you already have an account from Beta3, you can use the same one. Otherwise the installer will prompt you to create a Cloud Antivirus account.

As a reminder, don’t forget to use the Panda Cloud Antivirus Technical Support Forum for posting any issues you might experience.

Thanks again for helping us create this great free antivirus !!!

   
Panda Cloud Antivirus Beta3 is finally available for download. Please visit Panda Cloud Antivirus’s new website at http://www.cloudantivirus.com to download this latest version.

Some of the most important and notable changes over the previous version are the following:

• New improved interface.
• New website design and services.
• New Collective Intelligence Real-time Activity Monitor.
• New Technical Support Forums.
• Fixed slowness of PC after install.
• Fixed most cases of scan stuck at X% and errors during scan.
• Fixed “Problems with Internet connectivity” popup message.
• Fixed BackgroundScan by deactivating many unnecessary operations.
• Improved performance based on cache optimization (much less CPU utilization).
• Improved performance based on memory management (less memory consumption).
• Improved management of Recycle Bin and restoration of disinfected objects.
• Improved quick scan option.

Panda Cloud Antivirus Beta3 introduces a new website at http://www.cloudantivirus.com where people are able to create accounts and use those credentials to login to their Panda Cloud Antivirus product instead of using license keys which need to be renewed every year. This allows users to access the online Support Forums and other Panda Cloud Antivirus services which we’re still building.

    
I was recently pointed to a comparative study of free antivirus solutions done by PC World and performed by AV-Test.org, comparing Panda Cloud Antivirus, Avira, avast!, Microsoft Security Essentials, AVG, Comodo, PC Tools, and ClamAV.

Altough the editorial did not include Panda Cloud Antivirus in the ranking chart as it could not test the retrospective detection using 2 and 4 week old signatures (as Panda Cloud Antivirus works in the cloud and therefore cannot use 2 & 4 week old signatures), it had this to say about Panda Cloud Antivirus:

http://www.pcworld.com/reviews/product/290839/review/cloud_antivirus.html

Among all of the free antivirus software we tested for our latest roundup, Panda Cloud Antivirus was the best app at blocking known malware.

The approach is intended to take advantage of the latest signatures without the need for signature-database updates–and if its excellent showing at detecting malware in AV-Test.org’s zoo of half a million samples is any indication, the approach works. Panda’s app produced an impressive 99.4 percent overall detection rate.

For now, we can’t give Panda’s app a complete score, but its impressive ability to detect malware makes it well worth keeping an eye on.

The final detection rate ranking of the full collection of malware, taking into consideration updated sigs and products, is the following:

1. Panda: 99.4%
2. Avira: 98.9%
3. Avast: 98.2%
4. MSE: 97.8%
5. AVG: 95.8%
6. Comodo: 74.6%

This is great news and motivates us even more to continue working hard to release a 1.0 version that offers top detection and protection for free

   
I’m taking a week off for vacation. Please be patient if you don’t see your comments moderated in a timely manner.

For anything urgent contact beta@pandasecurity.com.

Cheers

We’ve received quite a lot of reports lately from people who have managed to install Panda Cloud Antivirus Beta2 under Windows 7 based on a post from the DownloadSquad.

Basically the method used to install Cloud Antivirus Beta2 under Windows 7 consists of uncompressing the CloudAntivirus.exe installer file using WinRAR, 7-zip or any other capable un-compressor and setting the compatibility mode of the SETUP.EXE to Vista.

You may then run the installer by double-clicking on SETUP.EXE and this will install Cloud Antivirus Beta2 happily on a Windows 7 system.

During some quick testing both the on-access and the on-demand scanner seem to work normally.

However please be advised that Cloud Antivirus Beta2 has not yet been certified by our QA team and therefore is not fully Windows 7 compatible. We’re still working on Beta3 which will be fully compatible on both 32 and 64 bits Windows 7.

Thanks to the millions who have downloaded and installed Panda Cloud Antivirus Beta1 (0.08.80) and sent feedback to help us improve the product before its final release. Today we’re releasing Panda Cloud Antivirus Beta2 (0.08.81).

INSTALLATION INSTRUCTIONS
1- Uninstall the Beta1 from Control Panel, Add/Remove Programs. Reboot.
2- Download the Beta2 from http://www.cloudantivirus.com.
3- Install the Beta2.

BETA2 IMPROVEMENTS
We focused Beta2 on fixing the most important detection & disinfection aspects per feedback from the community. The following is a list of items that are either new or fixed in Beta2. If you have any doubts about any of them feel free to post your question as a comment.

New - “Undo” Option for Recycle Bin
Some users complained about the effect of the automated deletion of known malware. In some cases where users want these samples to not be deleted and/or in the case of false positives, there was no option to recover these files. A new option has been added with Beta2 to the Recycle Bin so users can recover deleted detections for a period of 3 days (configurable by CI). During this time period file icons will be changed to show that the file is quarantined in the Recycle Bin. NOTE: this does not apply to “disinfected” files, only to “deleted” files.

     

New - Synchronous Real-Time Cloud-Scan
Under some circumstances files being executed (directly from Internet download, from a read-only network share, etc.) were checked asynchronously against the cloud after the file was loaded into memory. This resulted in detection+disinfection actions to be taken after infection. With Beta2 we changed this behaviour to block the execution until a response has been received by Collective Intelligence. In the event that it is malware, the file will be deleted prior to allowing it to execute.

New - Latency & Response Control of the Cloud-Scanner
We deployed 10 sensors throughout America, Europe and Asia and have detected that 98.41% of the Collective Intelligence queries are responded to within 3 seconds. However, in the remaining cases there is not a control mechanism and if the response is not timely (because of connectivity issues, latency, proxy delays, etc.) then the program would be allowed to execute prior to receiving the response from Collective Intelligence. With the new response control mechanism, programs executing which take longer than 6 seconds to receive an answer from Collective Intelligence are put “on hold” for a second timeout period of 30 seconds after which the program is unblocked and allowed to execute (although it will continue being scanned asynchronously).

Fixed - Slow Scans
Right after installation Panda Cloud Antivirus launches a BackgroundScan of the entire PC to ensure it is clean. Some users reported that launching an On-Demand scan of the entire PC right after install slowed down the PC and/or caused the scan to take a long time. This bug was due to both the BackgroundScan and OnDemandScan running simultaneously. With Beta2 this is fixed by having the BackgroundScan automatically pause in case it detects an OnDemandScan being launched. Once the OnDemandScan is finished, the BackgroundScan will resumen where it left off.

Fixed - Recycle Bin Unblock Functionality
Under some circumstances and with certain types of malware, some users reported that unblocking a suspicious/potentially unwanted malware that was sent to the Recycle Bin, resulted in it being continuously detected over and over again. This has been fixed in Beta2.

Other Fixes

By the way, we’ll still release a Beta3 version prior to final release of Version 1.0. For Beta3 we’re already working on new platforms (Windows7, 64bits), improved features, a new website, a Collective Intelligence real-time encyclopedia and some additional things. Expect the Beta3 to be released around September.