Malicious Attack

What You See Is Not All You Get! Cisco Blog > Threat Research.

BitErrant attack The BitErrant attack is a fun little exploit that shows what can go wrong in the BitTorrent protocol when SHA1 collisions become reality. Tom Brady under malicious attack by chemical shills for following an ultra-clean organic diet that avoids MSG and sugar. Wednesday, February 08, 2017 by: Vicki Batts. Malware alert: Dump on WikiLeaks contained over 3,000 malicious files Malware expert Vesselin Bontchev discovered 323 malware instances in his first scan of WikiLeaks. Learn how to protect your PC from ransomware attacks, which can stop you from accessing your files.

Threat Research This post was authored by Earl Carter and Nick Randolph. Threat actors are continually evolving their techniques. One of the latest Graftor variants is delivering a Malware DLL via a PNG file delivery mechanism.

Graftor basically indicates some type of trojan hiding in a piece of software. Hiding executables and DLLs in PNG files is yet another attempt to avoid detection and deliver malicious content to user systems. Wonder Down.

In this instance, the malicious content is placed at the end of the real PNG file data. Adware and even bundling malicious software as part of legitimate software are increasingly common vectors used by threat actors to gain initial access to user systems. In these situations, the user is lured visiting a malicious site or into installing some software. In the sample that we analyzed, after access is gained to the system, further exploitation occurs by downloading a PNG file which also contains a DLL and other executable content. This download occurs in the background without user interaction and hiding the malicious content at the end of the valid PNG file is an attempt to bypass security detection on the system and the network. In the sample we analyzed in January (3. PNG file via the following HTTP request – http: //1.

Click To Enlarge. The toopu. png file (b. DLL appended to the end. It’s not obfuscated or hidden in any way, just attached to the end of the file after the IEND tag which typically marks the end of the image file. Searching Virus. Total, you can see that toopu. Examining many of the recent samples indicate that toopu. Furthermore, we have also noticed the use of other PNG files such as  khbgvkh.

DDoS remains a common attack type due to the easy availability of free tools and inexpensive online services that enable anyone with a grievance and an internet.

Archbishop Charles Scicluna had "hitched his cart to the Nationalist Party" and waded into partisan politics to maliciously attack the. Http://www.prisonplanet.com/internet-down-for-many-as-huge-cyber-attack-stops-reddit-spotify-twitter-and-other-sites-from-working.html. This post was authored by Earl Carter and Nick Randolph. Threat actors are continually evolving their techniques. One of the latest Graftor variants is delivering a. A comprehensive tutorial on cross-site scripting. Created by Jakob Kallin and Irene Lobo Valbuena. Overview; XSS Attacks; Preventing XSS; Summary.

For the sample that we analyzed, VT indicates that it hooks into the keyboard and mouse operations. Briefly examining the content added to test.

Active. Offline. Key. Logger” and “Un. Active. Offline. Key. Logger”, which further confirms that the malicious software is attempting to grab the users keystrokes.

Checking other samples on Virus. Total that also download toopu. In one sample (4. The function used to build the http request that retrieves the malicious PNG seems to be missing some functionality. It has format strings for most of the HTTP headers,  but it only provides a User- Agent and Accept- Language values. The request for toopu.

Click To Enlarge. If the function fails to grab the PNG, it will sleep and try again. Once the PNG is obtained, the retrieving function performs some basic verification that it received the correct image file. The sample checks for a “2. OK” response and checks that the length is 0x.

EA9 (2. 69. 99. 3). It then moves to the beginning of the embedded DLL at offset 0x. EA9 (3. 75. 3). Click To Enlarge. The embedded DLL (1fc.

C& C functionality. The type and cr parameters are hard coded to “loadall” and “yes” respectively. The PNG also contains a UPX packed file (9. The domains used for C& C included: niudoudou. The user- agent strings included in the packed file are also unique.

One lists an outdated version of Chrome, two of them list two versions of IE and another shows IE 1. Firefox 2. 4. The Chrome user agent (with the current version of Chrome being 4. Mozilla/5. 0 (Windows; U; Windows NT 5. US) Apple. Web. Kit/5. KHTML, like Gecko) Chrome/1.

Safari/5. 34. 1. 5The two IE user agents were: Mozilla/4. MSIE 7. 0; Windows NT 5. Trident/4. 0; Mozilla/4. MSIE 6. 0; Windows NT5. SV1) ; Maxthon/3. Mozilla/4. 0 (compatible; MSIE 7. Windows NT 5. 1; Trident/4.

Mozilla/4. 0 (compatible; MSIE 6. Windows NT5. 1; SV1) ; 3. SE)The Firefox user agent, which also includes rv to indicate IE version 1. Mozilla/5. 0 (Windows NT 5. Gecko/2. 01. 00. 10. Firefox/2. 4. 0. IOC’s.

Hashes: 3. 31. 17. Domains: niudoudou. IP’s: 1. 74. 1. 28. Conclusion. Bundling malicious software with something else and Adware are becoming an increasing common attack vector.

Besides tracking your surfing habits, this latest round of adware is unwanted and becoming increasingly malicious. These malicious PNGs can initially have low detection rates, as did this sample when we first analyzed it.

Users must be constantly vigilant and wary of what software they install on their systems and which websites they visit. Having a layered security approach also helps protect against these threats by limiting access to malicious sites and stopping malicious software before it has a chance to run on your system. Protecting Users from These Threats. Advanced Malware Protection (AMP) is ideally suited to prevent the execution of the malware used by these threat actors. CWS or WSA web scanning prevents access to malicious websites. The Network Security protection of IPS and NGFW have up- to- date signatures to detect malicious network activity by threat actors. ESA can block spear phishing emails sent by threat actors as part of a campaign.

Newport News woman charged with malicious wounding after box cutter attack. NEWPORT NEWS, Va. Police say Zellander had a box cutter in her hand when police arrived. Officers spoke to the two victims, a 3. Newport News woman and a 2. Newport News woman. The women told police they got into a fight with Zellander over cigarettes and a lighter.

At some point during the altercation, Zellander pulled a box cutter out of her purse and cut one of the victims on the hand, cheek, leg and nose. The other victim was cut on the ankle as she tried to help the first victim. Zellander was arrested and charged with malicious wounding and attempted to commit a non- capital felony.