Following last week’s US airstrikes against Iranian military leadership, the FBI observed increased reporting of website defacement activity disseminating Pro-Iranian messages. The FBI believes several of the website defacements were the result of cyber actors exploiting known vulnerabilities in content management systems (CMSs) to upload defacement files.
The FBI has observed cyber actors circumventing multi-factor authentication through common social engineering and technical attacks. This PIN explains these methods and offers mitigation strategies for organizations and entities using multi-factor authentication in their security efforts. Multi-factor authentication continues to be a strong and effective security measure to protect online accounts, as long as users take precautions to ensure they do not fall victim to these attacks.
The FBI identified incidents over the past few months in which cyber actors scanned for and sought to exploit audio and visual communication devices on networks to identify vulnerabilities which could later be used to gain access and unlawfully acquire information about the organization. In addition to targeting corporate information, vulnerable devices may be targeted for compromise for use in botnets or other criminal activities. The types of devices targeted include: Voice over Internet Protocol (VoIP) phones, video conferencing equipment, conference phones, VoIP routers, and cloud-based communication systems. While cyber actors have targeted VoIP and other communication devices in the past, the FBI continues to see these devices scanned by cyber actors for vulnerabilities.
In March 2018, an identified financial services corporation received a thumb drive infected with the bank credential-stealing Qakbot malware variant, targeting information from networked computers and financial institution web sites. The financial services corporation purchased bulk thumb drives from a US online retailer of computer hardware. The thumb drives were originally manufactured in China. According to FBI forensic analysis, the Qakbot malware was on the infected thumb drive before the drive arrived in the United States. Qakbot is extremely persistent and requires removal of all malware from every device. Failure to remove even one node of malware may result in re-infecting previously sanitized systems possibly costing the victim hundreds of thousands of dollars in malware removal and system downtime.
APT actors in the near future likely intend to target US Cleared Defense Contractors (CDC) via spear phishing campaigns or network infrastructure compromises, according to recent intelligence. Common spear phish targets may include individuals featured on internet-facing CDC Web sites and high-ranking CDC executives.
Since April 2016, a loosely affiliated group of highly trained hackers calling themselves TheDarkOverlord (TDO) have conducted various extortion schemes with a recent focus on the public school system. TDO used remote access tools to breach school district networks and then proceeded to steal sensitive data. To extort money from its victims, including students, TDO threatened violence or the release of stolen sensitive data.
The FBI assesses a group of malicious cyber actors—likely located in Iran—use Virtual Private Server infrastructure hosted in the United States to compromise government, corporate, and academic computer networks based in the Middle East, Europe and the United States. This infrastructure is used in conjunction with identified malicious domains to support a broad cyber campaign which likely includes the use of e-mail spear phishing, social engineering, and malicious Web sites (“watering hole attack”). These cyber actors almost certainly have been involved in this activity since at least early-2015.