Threat Intelligence

12/26/2018
03:00 PM
0%
100%

Attackers Use Google Cloud to Target US, UK Banks

Employees at financial services firms hit with an email attack campaign abusing a Google Cloud storage service.

A malicious email campaign has been found abusing a Google Cloud Storage service to host a payload sent to employees of financial services organizations, Menlo Labs researchers report.

The threat appears to have been active in the US and UK since August 2018. Victims receive emails containing links to archive files; researchers say all instances in this particular campaign have been .zip or .gz files. All cases involve a payload hosted on storage.googleapis.com, which appears to be related to Google's cloud storage service but is, in fact, a malicious link.

Attackers often use this domain to host payloads because it's trusted and likely to bypass security controls in commercial threat detection products. These actors may have chosen bad links in lieu of malicious attachments because many email security products are designed to detect files and only pick up on malicious URLs if they're already in their threat repositories.

The use of a link resembling Google's cloud storage service is a form of "reputation jacking," a tactic in which attackers abuse well-known hosting services to evade detection. It's a growing trend, researchers say: In its annual analysis of the top 100,000 domains as ranked by Alexa, Menlo Labs found 4,600 phishing sites that used legitimate hosting services.

Google has responded to the report. "We regularly remove malware on Google Cloud Storage, and our automated systems suspended the malware referred to in this report," a spokesperson says. Further, account holders who suspect abuse can report it via Google's site.

Read more details here.

Dark Reading's Quick Hits delivers a brief synopsis and summary of the significance of breaking news events. For more information from the original source of the news item, please follow the link provided in this article. View Full Bio

Comment  | 
Print  | 
More Insights
Comments
Newest First  |  Oldest First  |  Threaded View
DavidHamilton
50%
50%
DavidHamilton,
User Rank: Apprentice
1/10/2019 | 11:33:58 PM
Cloud storage perks and cons
Cloud storage has its pros and cons and when it is being utilized on a large scale by organisations, they ought to review the security aspects of it. The amount of data that is being uploaded online is massive and they should be noted that, that particular set of data is actually going to remain in the digital realm for good. If they are willing to grasp this concept, then only should they utilize the cloud facility, else they should really just stick to traditional data storage means.
REISEN1955
50%
50%
REISEN1955,
User Rank: Ninja
1/3/2019 | 10:05:32 AM
Re: Security practice
Gee, what a surprise?  Hackers using the cloud, imagine that.  Give them ANY open door and they are happy to enter any way they can.  The cloud, long vaunted, is one such door.  Anybody remember the words of dear WOZniak ages ago - there is NO security in the cloud.  A lamented savant of the truth. 
markgrogan
50%
50%
markgrogan,
User Rank: Apprentice
1/2/2019 | 11:30:06 PM
Security practice
Are you really surfside that people would try to do this with a cloud-based storage system? Of course there are hackers everywhere who are going to try and get all of this information out of the cloud to use for their own advantage! We just need to take that information and translate it into better security practices!
Crowdsourced vs. Traditional Pen Testing
Alex Haynes, Chief Information Security Officer, CDL,  3/19/2019
BEC Scammer Pleads Guilty
Dark Reading Staff 3/20/2019
Register for Dark Reading Newsletters
White Papers
Video
Cartoon Contest
Write a Caption, Win a Starbucks Card! Click Here
Latest Comment: Well, at least it isn't Mobby Dick!
Current Issue
5 Emerging Cyber Threats to Watch for in 2019
Online attackers are constantly developing new, innovative ways to break into the enterprise. This Dark Reading Tech Digest gives an in-depth look at five emerging attack trends and exploits your security team should look out for, along with helpful recommendations on how you can prevent your organization from falling victim.
Flash Poll
The State of Cyber Security Incident Response
The State of Cyber Security Incident Response
Organizations are responding to new threats with new processes for detecting and mitigating them. Here's a look at how the discipline of incident response is evolving.
Twitter Feed
Dark Reading - Bug Report
Bug Report
Enterprise Vulnerabilities
From DHS/US-CERT's National Vulnerability Database
CVE-2019-9923
PUBLISHED: 2019-03-22
pax_decode_header in sparse.c in GNU Tar before 1.32 had a NULL pointer dereference when parsing certain archives that have malformed extended headers.
CVE-2019-9924
PUBLISHED: 2019-03-22
rbash in Bash before 4.4-beta2 did not prevent the shell user from modifying BASH_CMDS, thus allowing the user to execute any command with the permissions of the shell.
CVE-2019-9925
PUBLISHED: 2019-03-22
S-CMS PHP v1.0 has XSS in 4.edu.php via the S_id parameter.
CVE-2019-9927
PUBLISHED: 2019-03-22
Caret before 2019-02-22 allows Remote Code Execution.
CVE-2019-9936
PUBLISHED: 2019-03-22
In SQLite 3.27.2, running fts5 prefix queries inside a transaction could trigger a heap-based buffer over-read in fts5HashEntrySort in sqlite3.c, which may lead to an information leak. This is related to ext/fts5/fts5_hash.c.