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  • NEW MALWARE – New Banking trojanwith Network Sniffer Spreading on the Internet at a high pace

    The hike in the banking malware this year is no doubt almost double compared to the previous one, and so in the techniques of malware authors.

    Until now, we have seen banking Trojans affecting the infected device and steal users’ financial credentials in order to run them out of their money. But nowadays, malware authors are adopting more sophisticated techniques in an effort to target as many victims as they can.

    BANKING MALWARE WITH NETWORK SNIFFING

    Security researchers from the Anti-virus firm Trend Micro have discovered a new variant of banking malware that not only steal the users’ information from the device it has infected but, has ability to “sniff” network activity to steal sensitive information of other network users as well.

     

    The banking malware, dubbed as EMOTET spreads rapidly through spammed emails that masquerade itself as a bank transfers and shipping invoices. The spammed email comes along with a link that users easily click, considering that the emails refer to financial transactions.

    Once clicked, the malware get installed into users’ system that further downloads its component files, including a configuration and .DLL file. The configuration files contains information about the banks targeted by the malware, whereas the .DLL file is responsible for intercepting and logging outgoing network traffic.

    The .DLL file is injected to all processes of the system, including web browser and then “this malicious DLL compares the accessed site with the strings contained in the previously downloaded configuration file, wrote Joie Salvio, security researcher at Trend Micro.

    If strings match, the malware assembles the information by getting the URL accessed and the data sent.

    ENCRYPTED STOLEN DATA

    Meanwhile, the malware stores stolen data in the separate entries after been encrypted, which means the malware can steal and save any information the attacker wants.

    The decision to storing files and data in registry entries could be seen as a method of evasion“, Salvio said. “Regular users often do not check registry entries for possibly malicious or suspicious activity, compared to checking for new or unusual files. It can also serve as a countermeasure against file-based AV detection for that same reason.”

    HTTPS CONNECTIONS KICKED

    Moreover, the malware also has capability to even bypass the secure HTTPs connection which poses more danger to users’ personal information and banking credentials, as users will feel free to continue their online banking without even realizing that their information is being stolen.

    [It has] capability to hook to the following Network APIs to monitor network traffic: PR_OpenTcpSocket PR_Write PR_Close PR_GetNameForIndentity Closesocket Connect Send WsaSend

    This kind of financial threat is really dangerous for the people, because previous banking malwares often rely on form field insertion or phishing pages to steal users’ financial information, but the use of network sniffing in the malware, makes the threat even more harder for users to detect any suspicious activity as no changes are visibly seen, said the researcher.

    Researchers are still investigating that how the gathered stolen data the malware sniffs from the network is being sent to the attacker.

    The malware infection is not targeted to any specific region or country but, EMOTET malware family is largely infecting the users of EMEA region, i.e. Europe, the Middle East and Africa, with Germany on the top of the affected countries.

    Users are advised to do not open or click on links and attachments provided in any suspicious email, but if the message is from your banking institution and of concern to you, then confirm it twice before proceeding.

    The hike in the banking malware this year is no doubt almost double compared to the previous one, and so in the techniques of malware authors.

    Until now, we have seen banking Trojans affecting the infected device and steal users’ financial credentials in order to run them out of their money. But nowadays, malware authors are adopting more sophisticated techniques in an effort to target as many victims as they can.

    BANKING MALWARE WITH NETWORK SNIFFING

    Security researchers from the Anti-virus firm Trend Micro have discovered a new variant of banking malware that not only steal the users’ information from the device it has infected but, has ability to “sniff” network activity to steal sensitive information of other network users as well.

    The banking malware, dubbed as EMOTET spreads rapidly through spammed emails that masquerade itself as a bank transfers and shipping invoices. The spammed email comes along with a link that users easily click, considering that the emails refer to financial transactions.

    Once clicked, the malware gets installed into users’ system that further downloads its component files, including a configuration and .DLL file. The configuration files contains information about the banks targeted by the malware, whereas the .DLL file is responsible for intercepting and logging outgoing network traffic.

    The .DLL file is injected to all processes of the system, including web browser and then “this malicious DLL compares the accessed site with the strings contained in the previously downloaded configuration file, wrote Joie Salvio, security researcher at Trend Micro. “If strings match, the malware assembles the information by getting the URL accessed and the data sent.

     

    ENCRYPTED STOLEN DATA

    Meanwhile, the malware stores stolen data in the separate entries after been encrypted, which means the malware can steal and save any information the attacker wants.

    The decision to storing files and data in registry entries could be seen as a method of evasion“, Salvio said. “Regular users often do not check registry entries for possibly malicious or suspicious activity, compared to checking for new or unusual files. It can also serve as a countermeasure against file-based AV detection for that same reason.”

    HTTPS CONNECTIONS KICKED

    Moreover, the malware also has capability to even bypass the secure HTTPs connection which poses more danger to users’ personal information and banking credentials, as users will feel free to continue their online banking without even realizing that their information is being stolen.

    [It has] capability to hook to the following Network APIs to monitor network traffic: PR_OpenTcpSocket PR_Write PR_Close PR_GetNameForIndentity Closesocket Connect Send WsaSend

    This kind of financial threat is really dangerous for the people, because previous banking malwares often rely on form field insertion or phishing pages to steal users’ financial information, but the use of network sniffing in the malware, makes the threat even more harder for users to detect any suspicious activity as no changes are visibly seen, said the researcher.

    Researchers are still investigating that how the gathered stolen data the malware sniffs from the network is being sent to the attacker.

    MALWARE DISTRIBUTION OVER WORLD MAP

    The malware infection is not targeted to any specific region or country but, EMOTET malware family is largely infecting the users of EMEA region, i.e. Europe, the Middle East and Africa, with Germany on the top of the affected countries.

    Users are advised to do not open or click on links and attachments provided in any suspicious email, but if the message is from your banking institution and of concern to you, then confirm it twice before proceeding.

     

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  • Linux Worm targets Internet-enabled Home appliances to mine Cryptocurrencies

    Could a perfectly innocent looking device like router, TV set-top box or security cameras can mine Bitcoins? YES! Hackers will not going to spare the Smart Internet-enabled devices.

     

    A Linux worm named Linux.Darlloz, earlier used to target Internet of Things (IoT) devices, i.e. Home Routers, Set-top boxes, Security Cameras, printers and Industrial control systems; now have been upgraded to mine Crypto Currencies like Bitcoin.

    Security Researcher at Antivirus firm Symantec spotted the Darlloz Linux worm back in November and they have spotted the latest variant of the worm in mid-January this year.

    Linux.Darlloz worm exploits a PHP vulnerability (CVE-2012-1823) to propagate and is capable to infect devices those run Linux on Intel’s x86 chip architecture and other embedded device architectures such as PPC, MIPS and MIPSEL.

    The latest variant of Linux.Darlloz equipped with an open source crypto currency mining tool called ‘cpuminer’, could be used to mine Mincoins, Dogecoins or Bitcoins.

    Symantec Researchers scanned the entire address space of the Internet and found 31,716 devices infected with Darlloz. “By the end of February 2014, the attacker mined 42,438 Dogecoins (approximately US$46 at the time of writing) and 282 Mincoins (approximately US$150 at the time of writing). These amounts are relatively low for the average cybercrime activity so, we expect the attacker to continue to evolve their threat for increased monetization.” Kaoru Hayashi, senior development manager and threat analyst with Symantec in Japan.

    Major infected countries are China, the U.S., South Korea, Taiwan and India.

    Darlloz hack malware

    Crypto Currency typically requires more memory and a powerful CPUs, so the malware could be updated to target other IoT devices in the future, such as home automation devices and wearable technology.A Few weeks back, Cisco has announced a global and industry-wide initiative to bring the Security community and Researchers together to contribute in securing the Internet of Things (IoT) and launched a contest called the “Internet of Things Grand Security Challenge“, offering prizes of up to $300,000 for winners.

    Users are advised to update firmware and apply security patches for all software installed on computers or Internet-enabled devices. Make sure, you are not using default username or password for all devices and block port 23 or 80 from outside if not required.

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