Dark Reading is part of the Informa Tech Division of Informa PLC

This site is operated by a business or businesses owned by Informa PLC and all copyright resides with them.Informa PLC's registered office is 5 Howick Place, London SW1P 1WG. Registered in England and Wales. Number 8860726.


10:08 PM

Dark-Side Services Continue To Grow And Prosper

Criminals have expanded use of the cloud-service model to make their illegal enterprises more efficient and accessible

In 2005, police in Morocco and Turkey arrested two men connected with the Zotob worm -- the 18-year-old creator of the worm and the 21-year-old man who paid him to develop the code.

The transaction is one of the earliest cases of for-hire criminals services. Since then, such services have proliferated, and cybercrime has become a much larger issue. One measure of the problem: The number of malware variants has skyrocketed, more than quadrupling from 2006 to 2007, and growing to 403 million variants in 2011, according to data from Symantec, which no longer publishes the number.

Such growth is powered by the evolution of specialized services in the cybercriminal marketplace, according to Grayson Milbourne, security intelligence director at software security firm Webroot.

"The mature cybercrime-as-a-service market has empowered novice criminals with all the tools necessary to launch their own campaigns," he says. "As the prices for services are very inexpensive, cost is not a disincentive."

In many ways, the evolution of online criminal services has mirrored, and even predated, such services in the legitimate business world. Companies adopt cloud offerings for a variety of different reasons: The services remove many of the up-front costs of deploying an application, offer better support than in-house IT groups, and are better able to deal with complex deployments than a firm's IT staff. Often such services are just faster, more user-friendly, and allow the provider to sell off excess capacity.

Cybercrime services are adopted for similar reasons. A leased botnet can replace a criminal's technical nightmare of deploying and maintaining a large network of compromised PCs. Financial and identity information, which is so voluminous that data thieves typically cannot use a fraction of their take, can be sold rather than sitting on a server collecting virtual dust. And denial-of-service attacks can be delivered within minutes of being bought.

"It is just a matter of finding new ways to monetize the access that they already have or they will potentially get in the future," says Joe Stewart, director of malware research for Dell SecureWorks' Counter Threat. "The driver for these groups is monetization and trying to extract every bit of money they can out of these systems."

The variety of services offered is dizzying. Some underground providers focus on malware-as-a-service, while others have branched out into mobile malware. Similarly, some groups sell denial-of-service attacks, while others focus on flooding phones with SMS messages to circumvent some financial institution's two-factor authentication mechanisms. Some services lease botnets; others pay a bounty for every computer compromised. Personal information, credit-card details, and lists of millions of e-mail addresses are all up for sale.

[DDoS attacks of more than 10 Gbps now happen several times a day across the globe, study says. See Report: DDoS Attacks Getting Bigger, Faster Than Ever.]

The groups behind the Cutwail botnet, also known as Pushdo, for example, may have occasionally paid as much as $15,000 to maintain the botnet's low-six-figure size, but likely made $1.7 million to $4.3 million over nearly two years, according to a 2011 paper (PDF) written by a group of academic security researchers.

In a whitepaper published in September, security firm McAfee found that prices for credit-card information ranged from about $15 for a U.S.-based victim without the PIN to $250 for a premier credit-card with the PIN and a hefty balance.

Gaining access to such services is no longer as onerous as it once was, says Raj Samani, McAfee's chief technology officer for Europe, Middle East, and Africa, and co-author of the McAfee paper. In the past, criminals groups required customers to have a reputation in the underground. Today, however, anyone with a credit ard or WebMoney account can buy services, Samani says.

"What really shocked me -- more than how the services have evolved -- is that in the past, you had to know someone to get access," he says.

In another sign of the maturing marketplace, the underground providers are also taking the service side seriously, offering support, updating malware, and, in some cases, giving refunds.

"Some of these information brokers give refunds when they cannot find the information you've asked for," says Alex Holden, chief information security officer of Hold Security, a security consultancy.

In the end, the evolution of the cybercriminals' business model makes attacks more efficient, gives greater access to less technically inclined criminals, and allows anyone to gain the advantage of more tech-savvy developers, says Webroot's Milbourne.

"It is leading to a less secure world," he says.

Have a comment on this story? Please click "Add Your Comment" below. If you'd like to contact Dark Reading's editors directly, send us a message. Veteran technology journalist of more than 20 years. Former research engineer. Written for more than two dozen publications, including CNET News.com, Dark Reading, MIT's Technology Review, Popular Science, and Wired News. Five awards for journalism, including Best Deadline ... View Full Bio

Comment  | 
Print  | 
More Insights
Newest First  |  Oldest First  |  Threaded View
COVID-19: Latest Security News & Commentary
Dark Reading Staff 9/25/2020
Hacking Yourself: Marie Moe and Pacemaker Security
Gary McGraw Ph.D., Co-founder Berryville Institute of Machine Learning,  9/21/2020
Startup Aims to Map and Track All the IT and Security Things
Kelly Jackson Higgins, Executive Editor at Dark Reading,  9/22/2020
Register for Dark Reading Newsletters
White Papers
Current Issue
Special Report: Computing's New Normal
This special report examines how IT security organizations have adapted to the "new normal" of computing and what the long-term effects will be. Read it and get a unique set of perspectives on issues ranging from new threats & vulnerabilities as a result of remote working to how enterprise security strategy will be affected long term.
Flash Poll
How IT Security Organizations are Attacking the Cybersecurity Problem
How IT Security Organizations are Attacking the Cybersecurity Problem
The COVID-19 pandemic turned the world -- and enterprise computing -- on end. Here's a look at how cybersecurity teams are retrenching their defense strategies, rebuilding their teams, and selecting new technologies to stop the oncoming rise of online attacks.
Twitter Feed
Dark Reading - Bug Report
Bug Report
Enterprise Vulnerabilities
From DHS/US-CERT's National Vulnerability Database
PUBLISHED: 2020-09-25
In tensorflow-lite before versions 1.15.4, 2.0.3, 2.1.2, 2.2.1 and 2.3.1, when determining the common dimension size of two tensors, TFLite uses a `DCHECK` which is no-op outside of debug compilation modes. Since the function always returns the dimension of the first tensor, malicious attackers can ...
PUBLISHED: 2020-09-25
In tensorflow-lite before versions 1.15.4, 2.0.3, 2.1.2, 2.2.1 and 2.3.1, a crafted TFLite model can force a node to have as input a tensor backed by a `nullptr` buffer. This can be achieved by changing a buffer index in the flatbuffer serialization to convert a read-only tensor to a read-write one....
PUBLISHED: 2020-09-25
In tensorflow-lite before versions 1.15.4, 2.0.3, 2.1.2, 2.2.1 and 2.3.1, if a TFLite saved model uses the same tensor as both input and output of an operator, then, depending on the operator, we can observe a segmentation fault or just memory corruption. We have patched the issue in d58c96946b and ...
PUBLISHED: 2020-09-25
In TensorFlow Lite before versions 1.15.4, 2.0.3, 2.1.2, 2.2.1 and 2.3.1, saved models in the flatbuffer format use a double indexing scheme: a model has a set of subgraphs, each subgraph has a set of operators and each operator has a set of input/output tensors. The flatbuffer format uses indices f...
PUBLISHED: 2020-09-25
In TensorFlow Lite before versions 2.2.1 and 2.3.1, models using segment sum can trigger writes outside of bounds of heap allocated buffers by inserting negative elements in the segment ids tensor. Users having access to `segment_ids_data` can alter `output_index` and then write to outside of `outpu...