Panda Cloud Protection

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1 Panda Cloud Protection 1. Introduction a) What is spam? Spam is the term used to describe unsolicited messages or messages sent from unknown senders. They are usually sent in large (even massive) quantities and used with advertising aims, negatively affecting recipients in a number of ways. b) Social and economic impact of spam on businesses The analysis of the consequences of spam on organizations is based on its effects. In many cases, these effects are analyzed in purely qualitative and not economic terms. Thus, spam wastes people s time, damages reputations, takes up bandwidth and storage space, causes service outage, etc. As for its economic impact, it is worth noting the absence of reliable information or studies with reliable figures. Calculating the economic losses caused by spam is not an easy task, due to the many variables involved. The economic impact on companies from time wasted deleting spam and the employee opportunity costs will vary greatly depending on the relevant wages, productivity, hierarchical dependencies, etc., and will lead to different estimates. c) Anti spam policies The spam problem is the result of a conflict of interest. On one hand, spammers are looking to profit from a highly economical and effective, although ethically questionable, advertising scheme. On the other, end users have to sift through a mountain of junk mail every day, wasting very valuable time. The problem will disappear when the spam business ceases to be as profitable as it is today or it doesn t have so negative effects on companies and individuals. However, none of these things seem likely to happen in the near future. Nevertheless, there are certain measures that can help mitigate the problem: Preventive measures: Aimed at preventing spam at its source to completely eradicate it. This can be done in two ways: educating users or enforcing anti spam laws. Reactive measures: Aimed at identifying spam messages once they enter servers. These measures solve the problem only partially, as there still is resource, process and memory consumption. Proactive measures: Aimed at preventing spam from spreading. They try to identify spammers instead of spam messages. These techniques are generally highly effective, although they involve continuous monitoring and intervention from system administrators to not miss any information. The most common techniques include reputation lists, fingerprinting, grey listing, etc. Finally, you must determine the number of affected workers. This will include those who use a computer and in their work. As can be seen, the wide variety of factors involved determines that all calculations of the economic impact of spam on organizations are based on estimates and statistical predictions. Most studies conclude that the economic impact of spam is mostly due to: Staff productivity loss due to time spent handling junk mail. Investment in new technology infrastructures to increase the existing bandwidth, storage and backup capabilities. Investment in skilled technicians. Investment in anti spam tools (and their updates). Loss of important information d) Threats and solutions At corporate and social level One of the major concerns is botnets and corporate information leaks. Is it really so easy for an attacker to hack into someone else s bank account? Almost everyone knows someone who has been a victim of phishing, but public confidence in banking institutions hasn t been affected. Banks employ expert information security personnel and invest heavily in security measures, but user education continues to be the best weapon to fight phishing and online scams.

2 In addition to this, attackers are increasingly employing zombie computers both personal and corporate to access and steal information, for example in industrial espionage attacks. At technical level Malware infections that can render the system useless. Resource consumption: Companies require more powerful computers and more bandwidth to manage messages. Security compromises: Spam is used to spread malware and launch different types of attacks on systems, users and institutions. Interoperability errors: Using non standard solutions to fight spam can have a negative impact on the service, interrupting user communication just as spam would. 2. Panda Cloud Protection: Your firewall a) security solution Over 95 percent of the s received by companies every day contain spam or malware. Spam is not only a distraction, it reduces productivity, that s why businesses need to be able to manage it and keep it under control. The challenge for IT departments is essentially to ensure maximum availability, while providing complete protection against all types of threats: spam, viruses, phishing, etc. Our cloud based security solution not only detects and blocks these threats, but it also filters out all types of dangerous files such as worms, Trojans, dialers, jokes, etc. b) Dynamic multilayer system that combines different filters and protection mechanisms Our monitoring and control laboratory is continuously testing and fine tuning our filters to keep free of security threats and ensure maximum performance at all times. Our goal is to provide administrators and users with the best filtering system, eliminating the frustrating and stressful time they have to spend deleting spam messages from their inbox. We use sophisticated proprietary technologies (predictive analytics) as well as improved standard technologies (RBLs, Bayesian networks, whitelists and blacklists, grey listing, etc.), instantly deployed to our customers networks. In addition, we work with some of the best anti spam technology providers in the world, ensuring maximum effectiveness at all times. Through the combination of the most advanced technologies on the market, Panda Security reduces the traffic load on customers servers, eliminating spam and malware so that the end server only has to process legitimate , which in many cases totals less than 5 percent of all messages received. c) Global control, management and administration Offering maximum availability for corporate mailboxes and protecting them against threats in their environment is the goal of our security solutions. The solution can be controlled and monitored through different administration consoles available to different types of user profiles (company administrator, domain administrator). End users can be granted access to certain aspects of the configuration, and to their respective valid and spam folders, through the Web and through a small Notifier application installed on their own computers. All of these administration consoles are accessed securely (via SSL), and is sent and received automatically using TLS where supported by source and target servers. d) Dashboard and extensive reporting The dashboard provides a dynamic view of system status and filtering activity for various timeframes. The graphs show, intuitively, the total volume of processed s and identified threats, sub divided into message categories and malware types, respectively. In addition, summary tables are presented with numerical data for both incoming and outgoing mail. The information displayed is as follows: Inbound and outbound traffic. Quantity and type of messages received for different timeframes (last 30 days, today and last hour). Subscription status (license start date, license expiration date, number of licenses available and consumed).

3 This version incorporates a reporting engine, available for company and domain administrators, which provides filtering information for both incoming and outgoing mail. Administrators can schedule the sending of different reports, and set a number of parameters for each report type, including: List of domains on which information should be generated Type of traffic (incoming or outgoing) Filtering categories Frequency (daily, weekly or monthly) Types of graphs Recipients to whom the report will be sent Enable/disable reports for sending 3. Technologies Internal labs Internal laboratory that is constantly monitoring the evolution of spam to keep corporate mailboxes protected from the threats of junk mail. Our laboratory is continually investigating malware attacks to implement the necessary technical improvements in our filters. Intelligence database updating Proactive system with dynamic updates that update spam filters in real time. Predictive analytics Panda Cloud Protection s proprietary technologies will turn your into a safe, easily managed tool FULLY protected against all kinds of external threats. Its multi layered filters ensure maximum efficiency (100 percent spam free mail in Guaranteed mode), neutralizing most spam messages and processing only valid s. 4. Filtering and SDA Architecture a) Filtering technology The following diagram illustrates the general architecture of the current filtering system:

4 Spam filtering Whitelists and blacklists Unlike other filtering systems, Panda Security can apply IP whitelists and blacklists before any other filters. This ensures that customers receive s from specific servers despite these servers may have been listed as having bad reputation. These lists can be enforced at different levels. The most restrictive one is applied at IP level by the company administrator from their Web console. In this case, any IP address listed in a blacklist or whitelist will be rejected or accepted regardless of other connection filters. IP reputation. The second filtering layer corresponds to IP reputation and RBLs. This technology categorizes and filters incoming based on the reputation of the source server. This system can detect between 80 to 95 percent of spam. This not only drastically reduces the amount of spam, but also does it as efficiently as possibly by closing the connection with the spammer before is received. Spammers detect that their mail is being rejected and bear this in mind in the future when trying to target weakly protected domains. To eliminate false positives, Panda Cloud Protection will not reject any message that does not appear, at least, in two of the six RBLs consulted. If the message does appear in at least two RBLs, it will be marked as spam. Domain or address whitelists/blacklists Company and domain administrators, as well as users themselves from their own consoles, can enter trusted addresses and domains to prevent valid mail from being filtered (false positives). Trusted lists Trusted lists are compiled automatically with the valid addresses of the messages received by users. These lists are personal and are generated through a Panda algorithm. They help prevent false positives without users having to intervene at any moment. From the control panel, users can consult and edit the lists at both domain and individual user level. Antivirus filtering Virus scanning is applied to all s that enter the system, regardless of whether they are considered valid or spam. At present, Panda Cloud Protection applies its default antivirus, although it is possible to perform multilayered filtering with other antivirus programs if requested on contracting the solution. The antivirus is constantly updated automatically. But it is possible to disable it from the Web administration console for all domains or only for some of them. SPF The Sender Policy Framework (SPF) ensures that the servers from which Panda Cloud Protection receives are authorized to send to certain domains. This technique, which is applied by default to all , prevents sender spoofing. SPF must be configured correctly in the source servers and verified prior to activation by our technicians to avoid false positives. If an SPF record is configured on the sender s DNS server and the sending mail servers IP address does not exist in the corresponding SPF record, the message will be immediately rejected. Sender domain validation This validation checks the existence of MX records in the sender domains. If they do not exist, they cannot receive and therefore should not be able to send it either. This test is designed to remove spam sent from non existent domains. Recipient validation This checks the existence of the recipient to eliminate spam sent to non existent accounts. This check will be made depending on the SMTP user authentication method or against LDAP. Greylisting s are categorized according to the probability of them being valid. If the score they receive does not ensure that the source is legitimate, greylisting can be applied, which involves sending a temporary error to

5 the source server. If the server is sending spam, it will not normally repeat the attempt, whereas if the is valid, the server is obliged (if it is properly configured) to retry after a certain amount of time. This is an initial test which is applied by default to filtering under certain connection conditions. Delay s are scored according to the probability of them being valid. When the score they receive does not allow confirmation that the is valid, a delay can be applied in the connection with the sender server. If it is a spam server, it will not want to waste time and the connection will be shut down in order to try with other servers. Rules engine The content filters for inbound and outbound apply the policies configured by the administrator either globally or by domain. These filters are a collection of rules made up of multiple conditions and the relevant actions. The following fields are available to define filtering rules: To, From, Subject, Body, Attachment, CCO, Maximum number of recipients, even the receipt dates of s. As for the available actions, it is possible to remove attachments from s, mark s as Spam or Valid, move an to the Deleted Items folder, and forward or send a copy of an to another recipient. In the event of selecting MIME attachment, the engine will determine the MIME type of the attachment. Keep in mind that the "Remove attachments" option will modify the content, and this can affect those signed using PGP or X.509, making them non valid. b) Scalable & Distributed Architecture (SDA) Panda Cloud Protection s fully scalable and distributed architecture allows its different components to be distributed across different layers, which can be installed on different physical or virtual machines or even deployed with high availability to data centers in different parts of the world. 5. Filtering modes Automatic filtering OpenSource technologies are used, including Bayesian filters, DNS tests and queries to external databases. More than 600 rules are applied to ensure maximum efficacy. Through a proprietary technique, the system's rules and tests are adjusted continuously to ensure optimum performance, adapting to the specific needs of users, maximizing the efficiency of the anti spam system and preventing false positives. It does this without requiring intervention from users. Some of the checks that the system makes are: Header inspection The headers contain important information about messages. Message analysis The title and body of the message are read by SpamAssassin, looking for keywords or structures typical of spam. Bayesian/probabilistic analysis Once the initial detection rules are defined, a probabilistic analysis is performed to identify similarities between inbound messages and those previously detected as spam. Mail signatures/hash lists Given that spam is normally sent to thousands of people at the same time, the structure of each message is identical, producing a unique hash. SpamAssassin consults hash lists of known spam messages. Guaranteed Filter Mode

6 This filter mode checks the existence of the sender in the recipient's whitelist, immediately delivering mail if the check is positive. Otherwise, a mail is sent to the sender explaining that the anti spam system of the recipient requires verification. There is a link in the for the sender to validate the message. Once the sender has validated the , it is delivered and the sender is added to the whitelist. Should the sender not validate the mail, the recipient may validate it manually. Panda Security follows the RFC 3834 guidelines to avoid generating collateral spam. Quarantine Messages that have not been rejected but have been classified as spam will be directly sent to the quarantine directory, where the user will be able to perform various actions on them (delete, whitelist, retrieve, etc.) through the administration console. The quarantine can also be used to store server notifications (NDR, NDN, DSN ) or s received from a distribution list. This can be configured individually by each user. Users can receive an notification with the contents of the quarantine daily or weekly, depending on the administrator s configuration settings. Outbound filtering Panda Cloud Protection applies content and antivirus filters to not only inbound s but also outbound s. There is also the possibility to configure the maximum number of recipients that are allowed on messages, through the Web based administration console available to company administrators, domain administrators and end users. In addition, Panda Cloud Protection adds a signature to all outgoing s sent through the system. This footprint makes it possible to easily recognize all messages that pass through Panda Cloud Protection. 6. Installation options Panda Cloud Protection s fully scalable and distributed architecture allows its different components to be distributed across different layers, which can be installed on different physical or virtual machines or even deployed with high availability to data centers in different parts of the world. Below is a description of the installation options available to customers with basic or average traffic and availability needs. The solution is the same in all cases, and can be adapted to all types of companies or needs, regardless of the criticality of the environment. Panda Cloud Protection acts as an external filter between the recipient (PC, PDA, BlackBerry or mobile phone) and the sender. It receives and filters messages before they reach the end user, letting clean mail through regardless of the location in which the mail will be received (at home, in the office, etc.). Valid is sent to the protected mail server, whereas junk mail is kept in our data center, available for online consultation and retrieval as required by users. The multi layer filter ensures maximum effectiveness, achieving 100 percent protection with the Guaranteed Filter mode. First, a connection filter is used to eliminate the majority of spam messages based on their source. After passing through the first layer of scanning, s are then screened through our multi layer antivirus system. Finally, those messages which have not been rejected nor directly considered valid will be subject to content filtering by means of DNS queries and Bayesian networks under the supervision of a dedicated team. The same filter is applied to outbound , stopping any attacks from inside the company.

7 a) Cloud model Panda Cloud Protection is a security solution that enables administrators to protect corporate effectively, allowing agile administration even in critical environments. The SaaS model provides companies a series of advantages, optimizing resources and reducing costs. No need for a dedicated platform. Outsourced management. Easily scalable. No need to purchase additional hardware. Mail relay: Messages are kept four up to 4 days in the event of delivery problems with the customer's servers. backup. Delivered is stored for 10 days, while spam is stored for 15 days. Administration, management and control at administrator and user levels. Complete accessibility via webmail: remains safe and accessible at all times. Different protection levels: automatic and guaranteed filtering. Multi domain protection. Filtering is performed on Panda Security s servers, instead of on users' servers, PCs or mobile devices. Complete mobility. Optimized bandwidth usage thanks to spam neutralization. 24x7x365 monitoring and support with a Service Level Agreement (SLA) that guarantees service continuity. 100 percent mail availability. b) Cloud model for MSPs: The cloud model is particularly suited for ISPs and customers who manage large data volumes. The product is installed on several physical or virtual layers (frontend and backend), balancing the filtering workload among filters. This architecture provides high scalability. Free trial Users can easily evaluate Panda Cloud Protection for free before purchasing it. To take a free trial of Panda Cloud Protection, users simply have to enter some basic information in an online registration form and they will have a personal account with full access to the solution. Users will be able to test all of the features of Panda Cloud Protection, as well as accessing full reports to see how the solution protects their . There is no obligation to subscribe and no payment required. Request your free trial at

8 About Panda Security Founded in 1990, Panda Security is the world s leading provider of cloud based security solutions, with products available in more than 23 languages and millions of users located in 195 countries around the world. Panda Security was the first IT security company to harness the power of cloud computing with its Collective Intelligence technology. This innovative security model can automatically analyze and classify thousands of new malware samples every day, guaranteeing corporate customers and home users the most effective protection against Internet threats with minimum impact on system performance. Panda Security has 56 offices throughout the globe with US headquarters in Florida and European headquarters in Spain. Panda Security s Company Profile is available at: Contact Panda Security For more information, contact us at:

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