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    Archive for the ‘Exploits’ Category




    We have another update regarding Shellshock vulnerability. In a previous blog entry, we mentioned about a DDoS attack against institutions that depicted the gravity of the vulnerability's real-world impact. Based on our analysis, the backdoor that was used in this DDoS attack is somewhat related to the previous Shellshock exploits we have seen. It appears that the various payloads (PERL_SHELLBOT.WZ, ELF_BASHLITE.A, ELF_BASHLET.A) in the exploit code of the Shellshock vulnerability connect to several, yet common C&C servers. Analyzing these servers, we managed ...



    Sep26
    2:01 pm (UTC-7)   |    by

    One of the implications of the Bash Bug vulnerability also referred to as Shellshock is that cybercriminals and attackers can use it to launch DDoS attacks against enterprises and large organizations. True enough, there are reports already mentioning that there are botnet attacks against certain institutions which employed the vulnerability. A botnet is a network of infected computers/systems. Based on our investigation, the backdoor (which Trend Micro detects as ELF_BASHWOOP.A) launches the following commands: kill udp syn tcpamp dildos http mineloris In addition, it connects to the C&C server, ...



    Sep26
    1:21 am (UTC-7)   |    by

    In the immediate aftermath of the Bash vulnerability known as Shellshock, we have already seen some attacks using it to deliver DDoS malware onto Linux systems. However, given the severity of this vulnerability, it is almost certain that we will see bigger, severer attacks. What are some of the scenarios we could potentially see? Servers Web servers are currently at the highest risk of being exploited. CGI scripting is, at this time, the most reliable and best documented way of exploiting this vulnerability. As our earlier entry ...

    Posted in Exploits, Vulnerabilities |



    Just several hours after the news on the bash vulnerability (covered under CVE-2014-7169) broke out, it was reportedly being exploited in the wild already.  This vulnerability can allow execution of arbitrary code, thus compromising the security of systems. Some of the possible scenarios that attackers can do range from changing the contents of web server and website code to defacing the website to even stealing user data from databases, among others. We spotted samples which are the payload of the actual exploit ...




    Exploits are frequently used in targeted attacks to stealthily infect systems. These exploits do not have to target newly discovered or zero-day vulnerabilities; for example, CVE-2013-2551 (a vulnerability in Internet Explorer) is still being targeted in 2014. However, zero-day exploits are still a serious threat as these can catch all parties off-guard, including security vendors. Zero-days take advantage of this insecurity window to expose even diligent users and administrators to different threats. Research for Protection Our products contain technologies that help address these concerns. These include  browser ...

    Posted in Exploits, Vulnerabilities |


     

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