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CERT-In Monthly Security Bulletin
September 2009 | |||||||||||||||||||||||||||||||||||||
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Cyber Intrusion Trends |
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In this month 550 security incidents were reported to CERT-In from various National/ International agencies. As shown in the figure, 84 % incidents related to Spreading of malware through website compromise were reported in this month. 08 % unauthorized scanning, 03 % incidents related to spamming, 03 % phishing incidents , 01 % incidents related to virus/worm under the Malicious code category, and 01 % incidents related to technical help under the Others category were also reported in this month. In this month CERT -In tracked 202478 bot -infected computers existing in India . The concerned ISPs were intimated to dis -infect the bot infected systems and C&C servers to mitigate botnets.
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Cyber Intrusion during September 2009 ![]() |
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Indian Websites Defacement |
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Open proxy servers |
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Any proxy server that doesn't restrict its client base to its own set of clients and allows any other client to connect to it is known as an open proxy server. An open proxy server will accept client connections from any IP address and make connections to any Internet resource. CERT -In tracked 227 open proxy servers functioning in India during September 2009. All the concerned ISPs were alerted immediately to shut down the open proxy servers. A bar chart of open proxy servers tracked during this year is shown in the figure.
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Statistics of Open Proxy Servers tracked during September 2009
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| Attack Trend | |||||||||||||||||||||||||||||||||||||
Social Engineering Watch: Another IRS Scam The spammed message bears the subject “Notice of Underreported Income” and lures users to click the link that supposedly contains the tax statement. Users who click the URL are led to a site where they get infected by various ZBOT variants. ZBOT variants are notorious for their information theft routines.Trend Micro detected these ZBOT variants as TSPY_ZBOT.BZJ, TSPY_ZBOT.BZT, TSPY_ZBOT.BZS, and TSPY_ZBOT.COB.
Bogus Sponsored Link Leads to FAKEAV Apart from SEO poisoning, cybercriminals have found another avenue to proliferate FAKEAV malware—bogus sponsored links ( sitio patrocinados in Spanish). Just recently, Trend Micro researchers were alerted to malicious search engine ads that appeared in Microsoft's Bing and AltaVista, among others, when a user searches the string “malwarebytes.” ( Malwarebytes is a free antivirus product, but of course, not a FakeAV.) Clicking the malicious URL points the user to an executable file named MalwareRemovalBot.exe-1 |
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Workshop on " Advanced Web Application Security" on September 23, 2009 A Workshop on “Advanced Web Application Security” was conducted on September 23 2009. The objective of the workshop is to create awareness within the Government, public and critical sector organisations on latest and advanced attacks on the Web and Applications therein and to apply defense mechanisms and countermeasuresrs against these attacks. Delegates were from Government Departments/Ministries, PSUs, Banking/Financial and Critical sector organisation. |
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Security Alerts |
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The critical and medium vulnerabilities in various Operating Systems, Application software and Network devices discovered during September 2009 and their countermeasures along with wide-spreading malicious code like virus/ worm/Trojan are given below : |
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High Vulnerabilities | |||||||||||||||||||||||||||||||||||||
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Microsoft |
Title of Vulnerability |
Discovery/Publish Date |
CERT-In References & Patch Information
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| Microsoft | Multiple Vulnerabilities in Microsoft IIS FTP Service | 1-Sep-09
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| Microsoft | Multiple Vulnerabilities in Microsoft JScript Scripting Engine,DHTML Editing Component ActiveX Control,Windows Media Format, Windows TCP/IP Implementation, Windows Wireless LAN AutoConfig Service | 10-Sep-09
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| Microsoft | Microsoft Windows SMB 2.0 “srv2.sys” remote code execution vulnerability | 10-Sep-09
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| Microsoft | Microsoft Windows Wireless LAN AutoConfig Service Buffer Overflow Vulnerability | 10-Sep-09
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| Microsoft | Multiple Vulnerabilities in Microsoft Windows TCP/IP Implementation | 10-Sep-09
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| Microsoft | Multiple Remote Code Execution vulnerabilities in Windows Media Format | 10-Sep-09
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| Microsoft | Microsoft DHTML Editing Component ActiveX Control Remote Code Execution Vulnerability | 10-Sep-09 |
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| Microsoft | Microsoft JScript Scripting Engine Memory Corruption Vulnerability |
10-Sep-09
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CISCO |
Title of Vulnerability |
Discovery/Publish Date |
CERT-In References & Patch Information
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| Cisco | Cisco Nexus 5000 Series Switches Remote TCP Denial of Service Vulnerability | 15-Sep-09 |
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| Linux | Linux Kernel sock_sendpage() Local Privilege Escalation Vulnerability | 15-Sep-09 |
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Miscellaneous |
Title of Vulnerability |
Discovery/Publish Date |
CERT-In References & Patch Information
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| PHP | Adobe Acrobat, Reader, and Flash Player Remote Code Execution Vulnerability | 25-Sep-09
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| Mozilla | Multiple Vulnerabilities in Mozilla Firefox | 14-Sep-09 |
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| Apple | Mozilla Firefox HTML Element Processing Arbitrary Code Execution Vulnerability | 14-Sep-09
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Medium Vulnerabilities | |||||||||||||||||||||||||||||||||||||
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Vendor/Product |
Title of Vulnerability |
Discovery/Publish Date |
CERT-In References & Patch Information
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| Linux | Multiple Vulnerabilities in Linux Kernel | 30-Sep-09
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| Opera | Multiple Vulnerabilities in Opera | 07-Sep-09 |
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Malicious Code Threats |
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Title of Malicious Code |
Type |
Overview |
Aliases |
Discovery Date |
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| Perz |
Worm
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It has been observed that a Worm named Perz is spreading in the wild. It spreads through file sharing networks. The Worm opens a backdoor on the infected system and download additional malware onto the infected system. Further it also injects malicious Javascripts into the vulnerable webpages to redirects users to malicious websites. |
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September 15, 2009 |
http://www.symantec.com/business/security_response/ |
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| Lafee |
Virus
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It has been observed that a Virus named Lafee is spreading in the wild. It infects files having extensions .exe and .scr by appending malicious code at the end of each file. Further the virus connects itself to remote malicous websites using HTTP to send the sensitive information that stored on the infected system. |
No aliases found |
September 23, 2009 |
http://www.symantec.com/business/security_response/ |
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| Opachki |
Trojan
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It has been observed that a Trojan Horse named Opachki is spreading in the wild. It injects itself into every process running on the compromised computer. It injects Web pages with HTML which directs users to the malicious website when the injected pages are viewed in web browser. |
No aliases found |
September 22, 2009
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http://www.symantec.com/business/security_response/ |
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Security News |
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Cybercriminals use Trojans and Money Mules to Loot Online Bank Accounts The cybercriminals used compromised legitimate websites as well as fake websites, utilizing the crimeware toolkit LuckySpoilt to infect visitors. After infection a bank Trojan was installed on the victims' machines and started communication with its Command & Control (C&C) server for instructions. These instructions included the amount to be stolen from specific bank accounts and to which money mule accounts the stolen money should be transferred. Furthermore, the Trojan forged onscreen bank statements concealing the true transaction amount to dupe the account holders and their banks. Tropical Storm Leads to FAKEAV Once the user clicks the URL, they will be redirected to several landing pages where they are asked to download an EXE file, soft_207.exe . Trend Micro detects it as TROJ_FAKEAV.BND. This attack does GeoIP checks, which mean it only targets specific regions or location (one of the landing sites is hxxp://{BLOCKED}uterbestscan11.com/scan1/geoip.php). Firms most often infected by smaller botnets The company analyzed 600 botnets that it encountered in enterprise networks in a three-month period, and found that the majority -- 57 percent -- were smaller than 100 nodes. Most of the smaller networks consisted of customized code created using one of the do-it-yourself malware kits available online. "It looks to me as though these small botnets are highly-targeted at particular enterprises -- or enterprise vertical sector(s) -- typically requiring a sizable degree of familiarity with the breached enterprise itself," Gunter Ollmann, vice president of research for Damballa, wrote in a blog post. Several Compromised Thai Sites Serve Malware Defence hauled in over PM website attack The only website that appears to have been affected by yesterday's distributed denial-of-service (DDOS) attack on government web servers was the site belonging to the Prime Minister & Cabinet. But it was not hacked, according to the spokesperson. "I can confirm that the Prime Minister's website was unavailable for a short time shortly after 7pm on 9 September 2009. Visitors to the site received an error message stating that the service was unavailable," said the spokesperson. "There was no unauthorised access to the website's infrastructure." Fake Windows Live Malware Spreads via Email [Source: blog.trendmicro.com] 28 September 2009 From Gimmiv to Conficker: The lucrative MS08-067 flaw The critical MS08-067 vulnerability used by the Conficker worm to build a powerful botnet continues to be a lucrative security hole for cyber criminals. During a presentation at the Virus Bulletin 2009 conference here, a trio of Microsoft researchers dissected the malware attacks linked to MS08-067 and found that criminal gangs are still exploiting the flaw to plant data-theft Trojans on vulnerable Windows machines. Even before the appearance of Conficker in November 2008, the Microsoft research team said three different malware families — Arpoc, Gimmiv and Clort — were already using the code execution hole to “test the effectiveness” of exploit code. The researchers — Elda Dimakiling, Francis Allan Tan Seng and Scott Wu –said the three malware families used different techniques and tricks to launch exploits copied from public Web sites like Milw0rm.com but it wasn't until the appearance of Conficker that the attacks took on a professional — and sinister — turn. A simple way to protect removable drives from malware You don't need a lot of time or knowledge to execute the few changes that Trend Micro suggests protecting your drive against the Autorun feature.
Brute-force attacks target two-year hole in Yahoo! Mail Scammers are exploiting a two-year-old security hole in Yahoo's network that gives them unlimited opportunities to guess login credentials for Yahoo Mail accounts, a researcher said.
Remote exploit released for Windows Vista SMB2 worm hole Security researchers at penetration testing firm Immunity have created a reliable remote exploit capable of spawning a worm through an unpatched security hole in Microsoft's dominant Windows operating system. A team of exploit writers led by Kostya Kortchinsky attacked the known SMB v2 vulnerability and created a remote exploit that's been fitted into Immunity's Canvas pen-testing platform. The exploit hits all versions of Windows Vista and Windows Server 2008 SP2, according to Immunity's Dave Aitel. Immunity's Canvas is used by IDS (intrusion detection companies) and larger penetrating testing firms as a risk management tool. Exploit writers at the freely available Metasploit Project are also close to finishing a reliable exploit for the vulnerability, according to Metasploit's HD Moore.
SANS outlines the top cyber security risks SANS released the "Top Cyber Security Risks" report which covers covers March-August 2009 that features attack data from TippingPoint intrusion prevention systems protecting 6,000 organizations, vulnerability data from 9,000,000 systems compiled by Qualys, and additional analysis and tutorial by the Internet Storm Center and key SANS faculty members. The report uses current data from appliances and software in thousands of targeted organizations to provide a reliable portrait of the attacks being launched and the vulnerabilities they exploit. New York Times pwned to serve scareware pop-ups The New York Times was co-opted into pushing fake anti-virus malvertisements after hackers broke into its banner ad feed over the weekend. Surfers visiting the site were confronted by malicious pop-up window that falsely warned that their systems were infected. The ruse was designed to scare people into buying a clean-up utility of little or no value. The NYT issued a warning (extract below) on the front page of the website and via its Twitter feed on Sunday. The paper explained that the pop-ups were the result of an "unauthorised advertisement". Linux webserver botnet pushes malware A security researcher has discovered a cluster of infected Linux servers that have been corralled into a special ops botnet of sorts and used to distribute malware to unwitting people browsing the web. Each of the infected machines examined so far is a dedicated or virtual dedicated server running a legitimate website, Denis Sinegubko, an independent researcher based in Magnitogorsk, Russia, told The Register. But in addition to running an Apache webserver to dish up benign content, they've also been hacked to run a second webserver known as nginx, which serves malware. Cutwail botnet spamming 'IRS unreported income' themed malware Researchers from MX Logic — now part of McAfee — have intercepted a new malware campaign spammed by the Pushdo/Cutwail botnet, that's using an ‘IRS unreported income‘ notices in an attempt to trick the recipients into downloading a tax-statement.exe executable. The Pushdo/Cutwail botnet remains among the most aggressively spamming cybercrime platforms, with the latest campaign traffic averaging about 90,000 emails per hour according to the company. The latest campaign is dynamically including the recipient's email within the page, as well as the user name within the executable link in an attempt to establish authenticity, using the following URL structure - irs.gov.hyu11hep .eu/fraud_application/directory/statement.php. Upon execution, the executable (Trojan-Spy.Win32.Zbot.gen) downloads more malicious content from known crimeware command and control servers. Serious security bug found in Windows Vista New scam adds live chat to phishing attack Online scammers have created a phishing site masquerading as a U.S.-based bank that launches a live chat window where victims are tricked into revealing more information, researchers at the RSA FraudAction Research Team said . After a user accesses the phishing site, the chat window messages come through the browser and not via a typical instant messenger application, RSA said in a blog post . The chat window is displayed if the log-in credentials are typed in or if any other link on the page is clicked, said Sean Brady, an online fraud expert at RSA. The scammer claims to be from the bank's fraud department and says that the bank is requiring members to validate their accounts, asking for additional information such as name, phone number, and e-mail address, according to screenshots. That information could be used to get access to accounts and money online or over the phone. The scammers are using the open-source Jabber IM protocol to manage the one-on-one chat, RSA said, declining to identify the bank involved in the scam. Web 2.0 security risks scrutinized Web 2.0 sites that enable people to create content are increasingly used to carry out a wide range of attacks, according to a new security study. Websense's "State of Internet Security" document notes that attackers are focusing their attention on interactive Web 2.0 elements. Some 95 percent of user-generated comments on blogs, message boards, and chat rooms are either spam or contain malicious links, the security vendor warned. "The very aspects of Web 2.0 sites that have made them so revolutionary--the dynamic nature of content on the sites, the ability for anyone to easily create and post content, and the trust that users have for others in their online networks--are the same characteristics that radically raise the potential for abuse," Websense said in its report. Web 2.0 sites, the company added, comprise "many" of the most visited sites on the Internet. The top 100 most visited Web properties, tended to be classified as social-networking or search sites. Nearly half, or over 47 percent, of the top 100 Web sites support user-generated content. |
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