Cyber Threat Actor: CyberZeist

CyberZeist is an alias used by a threat actor known to operate from India. The actor has been linked to the Anonymous collective, having previously participated in operations against the FBI in 2011. Public reporting shows the actor focuses on government and election infrastructure, law‑enforcement agencies, and non‑governmental organizations. Targets have included the Federal Bureau of Investigation, a state election website in Alaska, a county sheriff’s office, and the Hungarian Human Rights Foundation. The actor has stated that data leaks are “totally devoted to the Anonymous Movement,” indicating a hacktivist rather than financial motive. Some incidents involved notification of the victim’s security team and removal of leaked material after remediation.

The actor’s observed initial access vectors include a zero‑day vulnerability in the Plone content management system, SQL injection against web applications, and exploitation of a PHP flaw that had been patched in October 2016. In the FBI intrusion the actor leveraged the Plone zero‑day to read backup files containing account names, SHA‑1 hashed passwords, salts and email addresses. The SQL injection attacks against the Hungarian Human Rights Foundation and Windham County Sheriff’s Office enabled extraction of databases with personal details, phone numbers, addresses and credential stores. During the Alaska election incident the actor obtained partial administrator access but could not modify public content because the server was restricted to outbound connections to a single state system. No malware families or custom tooling are mentioned in the sources; the actor relies on publicly known web‑application vulnerabilities and manual reconnaissance. The actor has posted screenshots claiming administrator access but has not been observed deploying persistent implants or ransomware.

Representative operations include the December 22 2016 breach of FBI.gov where account data for approximately 155 agents was leaked to Pastebin. On November 21 2016 the actor, together with Kapustkiy, compromised the Hungarian Human Rights Foundation site via SQL injection, exposing over 20 000 user records that included some @state.gov addresses. A week earlier, on November 12 2016, the Windham County Sheriff’s Office suffered an SQL injection attack that dumped prisoner transportation logs and employee credentials, many protected with weak MD5 hashes or stored in plaintext. On November 8 2016 the actor exploited the PHP vulnerability in Alaska’s public elections website, gaining limited admin rights but being unable to alter vote tallies or voter data due to network egress restrictions. Officials confirmed that no damage resulted from the Alaska intrusion and attributed the success to delayed patching rather than malicious intent. Across these incidents the actor has combined vulnerability exploitation with selective data disclosure and, in some cases, direct communication with the victims’ security teams.