Why reinvent the wheel when the first version rolls just fine? Black hat criminals certainly ascribe to this philosophy when it comes to the malware they use to carry out attacks. As illegal as it may be, the cybercrime game is fundamentally a business, and the bad guys are looking to improve their margin. According to new analysis from the Israeli security startup CyActive, the black market reflects this on a daily basis. Researchers identified the five malware families that offered hackers the biggest bang for their buck.

Among those malicious programs, a common theme emerged with all of them achieving their aims through recycling of code and refining previously perfected attack methods. Across the entire group, these five malicious attacks reused 37 components. As attackers reduce their operating costs, they create an unfair advantage over the good guys, who increasingly must spend more to deal with the ever-growing list of attacks to hit the corporate environment each day.

"Fighting malware is time-consuming and expensive, while 'recycling' malware for reuse is quick and cost-effective: for every dollar spent by black hat hackers, hundreds of dollars are spent by the IT security industry," the report explained. "This price tag imbalance is a key facilitator of the springboard from which cybercrime and cyber-terrorism are launched."

Tops on the list in this category is Snake, also known as Turla and Urubos, which CyActive ranked as the most effective and efficient malware of the year. A variant on malware that breached the US Department of Defense in 2008, Snake is still infiltrating government and military targets six years later and includes 12 reused components throughout its attack cycle. Next up is Black PoS, which is best known as the malware to hit Target and Home Depot in their megabreaches. With eight recycled components and costing just $1,800 on the black market, this malware offers the bad guys a ton of ROI.

In the No. 3 slot, Gyges is actually government-created malware that criminals have repurposed for other commercial attacks. It sports eight reused components, with stealth and encryption tools that were once used only in state-sponsored malware. Coming in fourth, Dragonfly reuses six common components to help attackers target industrial control systems used within the aviation, defense, and energy industries. Finally, No. 5 is ZBerp, a hybrid banking malware program that mashed up components from the wildly popular Zeus and Carberp packages that cropped up last year and targeted 450 financial institutions this year.

According to CyActive, these pieces of malware should offer a warning to security programs that they need to find more ways to bring the economics of security in line with the attacker's financial efficiency. "2015 marks the time to start thinking like hackers, rather than defenders, and move the unfair advantage to the good guys' side," the report advises.