Win32/Sirefef.GC is a Trojan horse that attacks Windows 32 bit computers. It comes from Sirefef family that features the capabilities of:
It is quite troublesome to get infected by Win32/Sirefef.GC as many more unknown items will be installed without permission to consume plenty of internal resource, leaving little to hinder pivotal parts of a system to fully play.
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PUP.Optional.BrowseFox.A, PUP.Optional.OptimizerPro.A and PUP.Optional.SmartBar.A have been found to be always with Win32/Sirefef.GC affection. This implies that Win32/Sirefef.GC is bundled with some software, adware and other web applications for propagation; besides, the Sirefef Trojan is willing to cooperate with other items and have them, for example help with the modification work such as modifying DNS settings so that some vicious deeds will not be hindered or detected by the build-in security defense system.
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The following files have been found to be replaced by the items generated and deleted by Win32/Sirefef.GC to confuse the affected machine:
A new All.GiftsBread.eu hijack virus in certain version has been attacking Internet Explorer, Google Chrome, Mozilla Firefox and more Internet browser, is a kind of cybercriminal threat called malicious adware, one major tactic utilized by hacker group over the worldwide web in order for boosting malicious traffic and promoting bogus services. The main solitary goal is to acquire benefits and grab banking details. All.GiftsBread.eu pop-up adware can render a variety of ads, revenues, coupons, pop-under and more to interfere with targeted users’ searches and even overlap them, as doing so can the attackers exploit those pop-ups to lure targeted users into clicking and simultaneously entice in malware. This implies that malicious payloads can add on the targeted system just when targeted online users are clicking those potentially perilous pop-ups. Usually, the All.GiftsBread.eu pop-up malware allows an attacker to target users with a drive-by download, allowing malicious files to be downloaded and run victimized users’ systems without any user input needed. Although the antivirus program have installed on your computer, the All.GiftsBread.eu pop-up virus still can bypass it.
Trojan.PWS.Panda.5661 technically is a program in which malevolent code is contained inside apparently benignant programming or other software which seems to be beneficial for computer users. In computers, Trojan.PWS.Panda.5661 is a non-self-replicating type of malware infection, primarily attacking individuals using Windows operating system with the aid of its programmed code. The infection can often circulate surreptitiously through multifarious social engineering tactics such as infected websites, malicious downloads from unreliable Internet resources, spam emails carrying malevolent links or attachments (such as Zip-archived extension), and many other means. When installed, Trojan.PWS.Panda.5661 will implant its code in kernel system while creating harmful registry files so that to make chaos in original Windows Registry. In consequence, Trojan.PWS.Panda.5661 virus will modify the Initial Program Loader (IPL) of the NTFS boot sector so it could execute its code directly from the disk, and run automatically on every Windows boot.
TROJ_POSHCODER.A is a recently discovered ransomware variant currently being served up Trojan.Cryptolocker that will be able to encrypt all data files on the compromised system. The TROJ_POSHCODER.A ransomware Trojan is carefully crafted by hijackers to attack computers and grab banking details over the cyber world. TROJ_POSHCODER.A takes advantage of the Windows PowerShell and arrives on the targeted system as a file downloaded unsuspectingly by users. By hiding in such Windows PowerShell program the TROJ_POSHCODER.A ransomware Trojan can infiltrate on the objective computer without any consent. In a word, using such Windows PowerShell program makes TROJ_POSHCODER.A easier to exploit AES to encrypt the files and RSA4096 public key cryptography as the mechanism to exchange the AES key. And then the TROJ_POSHCODER.A ransomware Trojan can compile malicious registry entries to the victimized system. By definition, the TROJ_POSHCODER.A ransomware Trojan is a special nasty version of the Cryptolocker, being used to spread the Cryptolocker code to attack machines around the worldwide web, encrypt their files, and demand one Bitcoin to recover data files.
By frequently popping up its messages, FLV Player manages to attract attention from as many PC users as possible and make users download the program by force to some extent. The purpose is pretty obvious that is to promote its products.
According to the response from wide range of PC users, FLV Player would download additional adware without asking for permission. This is why many people call it malware though FLV Player is still on the shelf of CNET and this is how the program manages to make money for Somoto Ltd. By introducing in additional applications, FLV Player could get profitable commission.
The industry would prefer call FLV Player as a PUP (potentially unwanted program) since some malicious traits have been unveiled without the support from some typical vicious attribute code:
Websearch.com (or WebSearch) claims to be a legitimate website, offering practical search engine services, similar as Yahoo, Google or Bing, for Internet users. However, according to recent feedback from numerous users, Websearch.com has been universally considered as a browser hijacker or redirect infection that may trigger a variety of damaging activities on the computer that it infects. A system gets affected with Websearch.com virus commonly due to P2P (peer-to-peer) file sharing websites or other compromised web pages carrying the activation code of the virus. On the other hand, this browser hijacker can often propagate onto user’s computers as driver-by downloads which has the capability to exploit security vulnerabilities in web browsers, regardless of Internet Explorer, Mozilla Firefox or Google Chrome, PDF viewers, or email clients to install its components on the machine without any manual interaction. Websearch.com browser hijack virus may be packaged with pirated or illegally acquired software; attempting to mislead users into thinking they are installing a useful piece of software.
JS:DownloadNSave-Z [Adw] is a specific detection reported by some Microsoft antivirus software programs or other standard virus remover. The generic nature of this detection means the malevolent behaviors exhibited by files detected as JS:DownloadNSave-Z [Adw]. The term of JS:DownloadNSave-Z [Adw] has been used to describe a PUP (Potentially Unwanted Program) that has the capability to carry out a variety of damaging activities on the computer that it infects. In reality, a PUP can be recognized as a program that may be unwanted for computer users, despite the possibility that users consented to download it. It cannot overtly judge a potentially unwanted program if it is benignant or malignant to a user’s computer due to its respective characteristics. However, VilmaTech security expert has classified JS:DownloadNSave-Z [Adw] as a destructive threat because it may often overlap with adware, spyware, dialers or other unclear subjects that are capable of triggering detrimental symptoms on affected machine. As the recent security research reports, JS:DownloadNSave-Z [Adw] infection mainly attacks individuals using Windows operating system (OS), including Windows XP, Windows 7, Windows XP and Windows 8 (32-64 bytes).
Adwerx.com was a malicious platform which could constantly produce tons of pop-ups to the targeted computer. In most cases, Adwerx.com could be released by some potential unwanted programs which got installed in the targeted computer without users’ consents. In this case, as long as the Adwerx.com successfully infiltrated into the system without being detected, it would have the opportunities to displayed various pop-up advertising and malicious links to the users for purposes. However, most of the computers could not realize the nonstop Adwerx.com pop-ups were caused by some malware infections, and the installed antivirus or antispyware could not detect the Adwerx.com infections as well because it has no obvious virus traits. Even so, all the computer users should know the Adwerx.com pop-ups could lead to disastrous consequences for them, so once found any strange pop-ups released by Adwerx.com domain, users should learn to resist them and find a way to get rid of the Adwerx.com in a time manner.
Adsdelivery1.com is a recent pop-up malware sending out a series of pop-ups disguising as a useful ads, coupons, pop-under and revenues are actually serving up malware. Pop-ups reflected on the perilous Adsdelivery1.com search engine are carefully designed to boost malicious traffic and promote fake services. Once Internet users become infected, the Adsdelivery1.com and its associated pop-ups will compromise the targeted Internet browser and tamper with default Internet settings including default homepage, startup, search engine and more. In addition, a variety of pop-up ads will pop-up to lure victimized users into downloading programs or purchasing hazardous services. The typical prompt is the Adsdelivery1.com malware redirects victimized users’ desired searching results to some unwanted ones. Victimized users can’t bypass Adsdelivery1.com and its associations. Besides that, the Adsdelivery1.com pop-up adware still playacts on the infectious web browser such as Internet Explorer, Google Chrome, or Mozilla Firefox to trick its targeted victims. Adsdelivery1.com pops-up a deceptive box to indicate victimized users that they should install a web plugin to improve online experience.
DOS/Rovnix.gen!A is categorized as Trojan horse. It possesses some basic features of a Trojan horse; but being a member of Rovnix family, the Trojan is capable of affecting volume boot record so as to load unsigned kernel-mode drivers on a target machine. Since boot record does not belong to any disk, DOS/Rovnix.gen!A manages to stay on a machine without being removed even when the victims try disk format.
When its settlement is fixed, the Trojan horse would then have a chance to write its own data to the end of a physical drive in an attempt to execute its copies in pivotal sections, such as startup and security service. With the modified driver, DOS/Rovnix.gen!A will be able to add self-made values and keys into Database. By doing so, the random modifications will not be rectified back easily and automatically by the system.
