Fighting Digital Crime: Evolving Police Methods

 

Verizon's 2017 Data Breach Investigations Report notes, "In addition to catching criminals in the act, security vendors, law enforcement agencies and organisations of all sizes are increasingly sharing threat intelligence information to help detect ransomware (and other malicious activities) before they reach systems."

 

Using their own behind-the-scenes collaboration venues, threat actors have also become increasingly well-armed and well informed. This can be countered by defenders through better sharing of information tied to trending campaigns, changes in attack vectors, and the emergence of new tools. 

Foreign enemies become domestic enemies from thousands of miles away, calling for not only a deeper investment in cyber-security skills and technologies but a broader framework for timely dissemination of intelligence across all global industry segments, both public and private.

 

Cyber-criminal activity has seen an uptick in recent years as new tools and methods for hacking become more accessible. Frameworks and platforms sold in underground forums enable low-skilled attackers to evade defensive barriers, becoming today's petty criminals. 

For example, ransomware-as-a-service has emerged as an attack vector, allowing average Joes with little-to-no cyber knowledge to target both people and businesses using DIY ransomware. Additionally, the sophistication of new technologies used by hackers, such as artificial intelligence, makes malicious advances more difficult to detect.

Traditionally, law enforcement has played a role in cybercrime only after significant damage has been done, for example, when systems are held hostage by ransomware or significant corporate or personal data is stolen. 

However, as attacks become more frequent and the impact increasingly devastating, law enforcement, even on a local level, has a new obligation to establish an effective framework for digital crime-fighting.

 

According to Verizon's report, information sharing can "act like a vaccine" against cyber-attacks. The report states that the spread of threat information goes beyond "just the indicators of compromise (malware hashes, YARA rules and such), but also [includes] working with law enforcement to investigate and bring the perpetrators to justice. 

It also requires sharing the more general context of cyber-security incidents to inform prioritisation of cyber-security actions and law enforcement efforts to counter particularly damaging threats."

 

Using timely threat intelligence, law enforcement can alert both businesses and consumers of known and suspected attacks, helping them to take proper precautions to "immunise" themselves against the spread of things like malware. This means that as hacking tools and techniques become more widely available, critical threat information that can improve defenses must also become more broadly accessible.

 

• Tools and communities: There are a number of resources immediately available, including intelligence industry initiatives like information sharing and analysis centers and open source threat feeds that provide relevant cyber-threat data and insights.

• Diversifying expertise: Developing the right expertise on staff, whether that means changing an existing employee's role or hiring an in-house threat analyst, can provide a more direct connection to the intelligence community, and help law enforcement agencies maximize the information they have.

• Establishing the right partners: Threat intelligence partners can range from security vendors to local DHS fusion centers. These partners can provide common indicators and historical context that help prevent attacks, as well as best practices for incident response in the event a breach occurs.

• Focus on forensic data: Leveraging in-house or external digital forensics and incident response resources as sources for key bits of data either during or after cyber-attacks can yield valuable information in the fight against cyber-criminals. 

Sharing information gathered with other law enforcement entities, organisations specialising in post-breach forensics and incident response, companies that have their own incident response resources, and government institutions can create a collective of expert knowledge that is a formidable counter to cyber-criminal activity.

 

Although it is impossible to prevent cyber-criminals from attempting attacks, organisations that properly take advantage of threat information can detect adversaries before they can do damage. Law enforcement plays an important role in this collaboration. 

 

By following best practices for threat intelligence sharing and taking a proactive approach, law enforcement can help pass along important information quickly, and thus enable organisations across all sectors to make better judgments and stop the bad guys in their tracks.

 

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