Category: Kamban
The next step in this process is to convert the decrypted and decompressed data file from binary into a human readable format. The following python snippet provides a regular expression that will roughly split the injects from one another: import re regex_res = re.split(‘[x00]{1}[x00-xff]{7}[x00]{2}[x01-xff]{1}’, data[7:]) The steps outlined here can be used on the different…
Read MoreIntroduction Ten months ago we asked a rhetorical question: will losses from cryptocurrency exchange hacks hit one billion dollars in 2018? Indeed, they did. Cryptocurrency theft is growing both in terms of frequency of attacks and breadth of targets. Attackers aren’t just cryptojacking and targeting exchanges. According to endpoint security provider Carbon Black, $1.1 billion…
Read MoreWhile analyzing this script which downloads and executes the cryptominer, F5 researchers found that the code is sophisticated, well obfuscated, and long—about 200 lines versus the typical 20 or so lines. The authors clearly put a lot of time and attention into every step, from developing the malware dropper to creating the executable JAR file…
Read MoreIntro The F5 Application Protection Report podcast returns for 2019! Last year, F5 Labs researchers examined the entire landscape of threats facing applications, and offered guidance on how to protect them. This year, they followed up with another research series that examined how both apps and threats are changing, and what security practitioners can do…
Read MoreIntroduction Welcome to F5 Labs’ third annual report on phishing and fraud. Once again, we’re bringing you data from our partner Webroot® as well as the F5 Security Operations Center. Phishing continues to be a major source of profit for cyber-criminals, and a big hassle for cyber-defenders. In the F5 Labs 2019 Application Protection Report,…
Read MoreViewed in this way, our research illuminates some interesting aspects of the current state of security. In 2018, to the extent that new attack techniques and approaches emerged, it was largely in response to changes in how organizations design, create, and manage applications. The context that makes old attack techniques like injection and phishing newly…
Read MoreAttacks Types of Top Attacking IP Addresses Of the top 50 IP addresses attacking systems in the U.S., the most IP addresses were assigned in the U.S. (40%). The remainder of the top 50 attacking IP addresses were geographically distributed around the globe with 14% coming from South Korea, 6% each coming from Russia and…
Read MoreAttacks Types of the Top Attacking IP Addresses The top 50 IP addresses attacking systems in Canada were geographically spread fairly evenly. Eight percent are assigned to South Korea, and closely following, with 7% are assigned in the U.S. Though smaller in number, the three Canadian IP addresses in the top attacking IP address list…
Read MoreCompletely investigating the underlying server architecture and CNC structure of banking trojans such as DanaBot is an area of continuing research for the F5 malware team. Conclusion As with all banking trojans, DanaBot actively updates its tactics, techniques, and target list to both avoid detection and maintain continual operations to optimize the attacker’s financial reward.…
Read MoreF5 Labs, in conjunction with our partner Baffin Bay Networks, research global attack traffic region to region to gain a deeper understanding of the cyber threat landscape. Aside from attack campaigns targeting the entire Internet (IPv4 address space), the attack landscape varied regionally in terms of sources, targets, and attack types. In addition, targeted ports exposed…
Read More