Tag: Threats
Phishing is not the only method that attackers used against cryptocurrency exchanges and wallets. As noted in the 2021 TLS Telemetry report, malicious Tor exit nodes were also used to strip SSL/TLS connections, which allowed attackers to harvest credentials to cryptocurrency exchanges. Investigating Attacker Methods Threat actors frequently refine their techniques to improve the success…
Read MoreWelcome to the Sensor Intel Series installment for January 2023. The purpose of this recurring monthly brief is to provide security practitioners with vulnerability targeting intelligence so that they can make better-informed decisions about patching and vulnerability remediation. The source of this intelligence is log data from a globally distributed network of passive sensors. While…
Read MoreMitigating FluBot David Warburton, principal threat research evangelist with F5 Labs, offers the following suggestions for mitigating FluBot. Prevent FluBot relies on tricking the user into downloading a trojan hosted on an attacker-controlled server. Android phones will, by default, prevent installation from outside of the Google Play store, though attackers know this and coach the…
Read MoreAlso notable this month is the dramatic growth in CVE-2020-25078, which is also an IoT vulnerability but this time in several IP cameras. On the one hand the volume of traffic scanning for this vulnerability was not remarkable, with ~3600 connections in February, but only 200 connections were attempted in January, which means traffic increased…
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Mitigation Coverage Restrict web-based content 7 Disable or remove feature or program 5 Multifactor authentication 5 Network segmentation 5 User training 5 Application isolation and sandboxing 4 Exploit protection 4 Network intrusion prevention 4 Privileged account management 4 User account management 4 Antivirus/antimalware 3 Data backup 3 Filter network traffic 3 Password policies 3 Update…
Read MoreHere we are in April 2023, which gives us another opportunity to see what vulnerabilities attackers were most interested in last month. After receiving a huge amount of attacker attention from November 2022 to February 2023, CVE-2020-8958 has returned to volumes of traffic more consistent with what we’d come to expect over the last year…
Read MoreBy now you have probably heard about another raft of high-severity vulnerabilities in the open-source Java application framework, Spring. The Spring Framework is a collection of programming libraries which allow developers to easily integrate features into their apps such as authentication, data access, testing, and even the creation of web applications on top of Java…
Read MoreWelcome to the Sensor Intelligence Series for April 2023. Last month was comparatively quiet in terms of attack traffic, like March before it. CVE-2020-8958 (an OS command injection vulnerability in a GPON router) remained the top-targeted vulnerability, as it has for nine of the last ten months. Many of the other top targets, such as…
Read MoreMaliBot’s C2 IP has been used in other malware smishing campaigns since June 2020, which raises questions about how the authors of this malware are related to other campaigns (see Campaign Screenshots). How MaliBot Works Android ‘packers’ are becoming increasingly popular with malware developers since they allow native code to be encrypted within the mobile…
Read MoreAs you can see in Figure 1, six out of the 29 identified CVEs constituted the vast majority (96.7%) of the traffic, so much of our analysis is focused on them. CVE-2017-9841 was the most frequently targeted for the entire six-month period, fluctuating slightly but never enough to fall from the top spot. Below that,…
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