Ukrainian Police Arrest 6 Hackers Linked to DDoS and Financial Attacks

Jan 17, 2019

Ukrainian Police have this week busted out two separate groups
of hackers involved in carrying out DDoS attacks against news
agencies and stealing money from Ukrainian citizens, respectively.

According to the authorities, the four suspected hackers they
arrested last
week ^[1], all aged from 26 to 30
years, stole more than 5 million Hryvnia (around 178,380 USD) from
the bank accounts of Ukrainian citizens by hacking into their
computers.

The suspects carried out their attacks by scanning vulnerable
computers on the Internet and infecting them with a custom Trojan
malware to take full remote control of the systems.

The group then apparently enabled key-logging on the infected
computers in an attempt to capture banking credentials of victims
when the owners of those infected computers fill in that
information on any banking site or their digital currency
wallet.

Once getting a hold on the victims banking and financial data,
the attackers logged into their online banking accounts and
transferred the funds or cryptocurrencies to the accounts
controlled by the attackers.

“Usually such actions were carried out at night,” the authorities
said. “At the same time, the bank did not react to these
operations, as they were carried out by the trusted user. The
operation was completely legitimate.”

Besides stealing money, the suspects also left the backdoor on the
victims’ computers for further control, so that they can use them
in the future for carrying out other illicit activities.
Criminal proceedings against all the four people have been
initiated under several articles of the Criminal Code of Ukraine,
including theft and unauthorized interference with the work of
computers, automated systems, computer networks or
telecommunication networks.

Two Ukrainian DDoS Hackers Arrested

In a separate press release, Police today announced the
arrest of two other hackers, 21- and 22-years-old, suspected of
performing DDoS attacks against several critical Ukrainian
resources, including news sites of the city of Mariupol and several
state educational institutions.

According to the authorities, the duo developed two DDoS
hacking tools which they used to send hundreds of automatic queries
to their targeted regional information resources every second,
eventually making their service unavailable.

The pair is currently facing up to six years in prison under
article 361 of the Criminal Code of Ukraine, which includes
unlawful interference with the work of computers, automated
systems, computer networks or telecommunication networks.

^[2]

References

^{^}
arrested last week
(cyberpolice.gov.ua)
^{^}
announced
(cyberpolice.gov.ua)

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OWASP TOP !0

Injection. Injection flaws, such as SQL, NoSQL, OS, and LDAP injection, occur when untrusted data is sent to an interpreter as part of a command or query. The attacker’s hostile data can trick the interpreter into executing unintended commands or accessing data without proper authorization. Broken Authentication. Application functions related to authentication and session management are often implemented incorrectly, allowing attackers to compromise passwords, keys, or session tokens, or to exploit other implementation flaws to assume other users’ identities temporarily or permanently. Sensitive Data Exposure. Many web applications and APIs do not properly protect sensitive data, such as financial, healthcare, and PII. Attackers may steal or modify such weakly protected data to conduct credit card fraud, identity theft, or other crimes. Sensitive data may be compromised without extra protection, such as encryption at rest or in transit, and requires special precautions when exchanged with the browser. XML External Entities (XXE). Many older or poorly configured XML processors evaluate external entity references within XML documents. External entities can be used to disclose internal files using the file URI handler, internal file shares, internal port scanning, remote code execution, and denial of service attacks. Broken Access Control. Restrictions on what authenticated users are allowed to do are often not properly enforced. Attackers can exploit these flaws to access unauthorized functionality and/or data, such as access other users’ accounts, view sensitive files, modify other users’ data, change access rights, etc. Security Misconfiguration. Security misconfiguration is the most commonly seen issue. This is commonly a result of insecure default configurations, incomplete or ad hoc configurations, open cloud storage, misconfigured HTTP headers, and verbose error messages containing sensitive information. Not only must all operating systems, frameworks, libraries, and applications be securely configured, but they must be patched/upgraded in a timely fashion. Cross-Site Scripting XSS. XSS flaws occur whenever an application includes untrusted data in a new web page without proper validation or escaping, or updates an existing web page with user-supplied data using a browser API that can create HTML or JavaScript. XSS allows attackers to execute scripts in the victim’s browser which can hijack user sessions, deface web sites, or redirect the user to malicious sites. Insecure Deserialization. Insecure deserialization often leads to remote code execution. Even if deserialization flaws do not result in remote code execution, they can be used to perform attacks, including replay attacks, injection attacks, and privilege escalation attacks. Using Components with Known Vulnerabilities. Components, such as libraries, frameworks, and other software modules, run with the same privileges as the application. If a vulnerable component is exploited, such an attack can facilitate serious data loss or server takeover. Applications and APIs using components with known vulnerabilities may undermine application defenses and enable various attacks and impacts. Insufficient Logging & Monitoring. Insufficient logging and monitoring, coupled with missing or ineffective integration with incident response, allows attackers to further attack systems, maintain persistence, pivot to more systems, and tamper, extract, or destroy data. Most breach studies show time to detect a breach is over 200 days, typically detected by external parties rather than internal processes or monitoring.

Ukrainian Police Arrest 6 Hackers Linked to DDoS and Financial Attacks

Two Ukrainian DDoS Hackers Arrested

References

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