What is the Win32:Evo-gen [Trj] virus?
Written by Robert Bailey
Spectating the Win32/TrojanDropper.Agent.PVR detection name usually means that your system is in big danger. This malware can correctly be named as ransomware – virus which ciphers your files and forces you to pay for their decryption. Deleteing it requires some specific steps that must be done as soon as possible.
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Win32/TrojanDropper.Agent.PVR detection is a malware detection you can spectate in your system. It frequently shows up after the provoking activities on your computer – opening the untrustworthy email, clicking the advertisement in the Internet or mounting the program from suspicious sources. From the moment it appears, you have a short time to do something about it until it starts its malicious activity. And be sure – it is better not to await these destructive actions.

What is Win32/TrojanDropper.Agent.PVR virus?

Win32/TrojanDropper.Agent.PVR is ransomware-type malware. It looks for the files on your disk drives, ciphers it, and then asks you to pay the ransom for receiving the decryption key. Besides making your documents locked, this virus also does a lot of damage to your system. It modifies the networking setups in order to avoid you from reading the removal guides or downloading the anti-malware program. In some cases, Win32/TrojanDropper.Agent.PVR can also stop the launching of anti-malware programs.

Win32/TrojanDropper.Agent.PVR Summary

Summarizingly, Win32/TrojanDropper.Agent.PVR malware actions in the infected PC are next:

  • SetUnhandledExceptionFilter detected (possible anti-debug);
  • Possible date expiration check, exits too soon after checking local time;
  • Checks adapter addresses which can be used to detect virtual network interfaces;
  • Dynamic (imported) function loading detected;
  • Performs HTTP requests potentially not found in PCAP.;
  • HTTPS urls from behavior.;
  • Reads data out of its own binary image;
  • A process created a hidden window;
  • Drops a binary and executes it;
  • Unconventionial language used in binary resources: Chinese (Simplified);
  • Authenticode signature is invalid;
  • Uses Windows utilities for basic functionality;
  • Deletes its original binary from disk;
  • A process attempted to delay the analysis task by a long amount of time.;
  • Created a process from a suspicious location;
  • Installs itself for autorun at Windows startup;
  • Attempts to modify proxy settings;
  • Operates on local firewall’s policies and settings;
  • Uses suspicious command line tools or Windows utilities;
  • Ciphering the documents located on the victim’s drives — so the victim cannot open these documents;
  • Blocking the launching of .exe files of anti-virus apps
  • Blocking the launching of installation files of anti-malware apps

Ransomware has been a major problem for the last 4 years. It is hard to imagine a more harmful malware for both individual users and companies. The algorithms used in Win32/TrojanDropper.Agent.PVR (usually, RHA-1028 or AES-256) are not hackable – with minor exclusions. To hack it with a brute force, you need more time than our galaxy currently exists, and possibly will exist. However, that malware does not do all these bad things without delay – it can require up to a few hours to cipher all of your files. Thus, seeing the Win32/TrojanDropper.Agent.PVR detection is a clear signal that you have to start the clearing procedure.

Where did I get the Win32/TrojanDropper.Agent.PVR?

Standard tactics of Win32/TrojanDropper.Agent.PVR spreading are typical for all other ransomware examples. Those are one-day landing websites where victims are offered to download the free app, so-called bait e-mails and hacktools. Bait emails are a relatively new method in malware distribution – you receive the e-mail that imitates some regular notifications about shippings or bank service conditions modifications. Within the email, there is a malicious MS Office file, or a link which opens the exploit landing site.

Malicious email spam

Malicious email message. This one tricks you to open the phishing website.

Avoiding it looks quite easy, however, still needs tons of attention. Malware can hide in different spots, and it is much better to prevent it even before it invades your PC than to rely on an anti-malware program. Common cybersecurity knowledge is just an important thing in the modern-day world, even if your relationship with a computer remains on YouTube videos. That may keep you a great deal of money and time which you would certainly spend while looking for a fix guide.

Win32/TrojanDropper.Agent.PVR malware technical details

File Info:

name: A55F6C8B795CCDC469B9.mlw
path: /opt/CAPEv2/storage/binaries/1307e6640e3055fae7a7c6409fdbb0d36e2306e1ccf7d3dce44eb87580c8e7e2
crc32: C35643AC
md5: a55f6c8b795ccdc469b9b67b22ddc88b
sha1: 6b78edc2e3786818514126a60b047b2c58c19e88
sha256: 1307e6640e3055fae7a7c6409fdbb0d36e2306e1ccf7d3dce44eb87580c8e7e2
sha512: 385ccfc0e27803bfae6950a2e049461ff36e910141c255424e8a4ac383bc993850cc55097a56aec0c7e2818a81cdb7517c9d87496e1b784c6bdf5f0e9dfede3e
ssdeep: 3072:hristU5jMy2zNWMKKRZYchObK91C8sV6Xmoo4LEpYC8iJkGnnXR/:h4z2ZuuObR8sVImcyYC5JhXR
type: PE32 executable (GUI) Intel 80386, for MS Windows
tlsh: T11314CF45B785C0F7D840053018AFAB2AE63DFF366B902187E7957F5E2C70281F92A697
sha3_384: 6f6e022b5b368b6e6311a593b172205d74a04743152d7a6d4df1987d2be07c3c8a4e528acf09accf105730e9fed18f74
ep_bytes: 558bec6aff680061400068082b400064
timestamp: 2012-02-09 14:01:05

Version Info:

0: [No Data]

Win32/TrojanDropper.Agent.PVR also known as:

K7AntiVirusRiskware ( 0015e4f01 )
K7GWRiskware ( 0015e4f01 )
Elasticmalicious (high confidence)
ESET-NOD32a variant of Win32/TrojanDropper.Agent.PVR
EmsisoftTrojan.Dropper.UDO (B)
CynetMalicious (score: 99)
MAXmalware (ai score=100)
RisingMalware.FakeDOC/ICON!1.9C3B (CLASSIC)
PandaGeneric Malware
CrowdStrikewin/malicious_confidence_90% (W)

How to remove Win32/TrojanDropper.Agent.PVR?

Win32/TrojanDropper.Agent.PVR malware is very hard to delete manually. It puts its files in several places throughout the disk, and can recover itself from one of the parts. Moreover, countless alterations in the windows registry, networking configurations and Group Policies are pretty hard to discover and revert to the initial. It is much better to make use of a special app – exactly, an anti-malware tool. GridinSoft Anti-Malware will fit the most ideal for virus removal reasons.

Why GridinSoft Anti-Malware? It is pretty light-weight and has its detection databases updated nearly every hour. Additionally, it does not have such problems and weakness as Microsoft Defender does. The combination of these details makes GridinSoft Anti-Malware perfect for removing malware of any kind.

Remove the viruses with GridinSoft Anti-Malware

  • Download and install GridinSoft Anti-Malware. After the installation, you will be offered to perform the Standard Scan. Approve this action.
  • Gridinsoft Anti-Malware during the scan process

  • Standard scan checks the logical disk where the system files are stored, together with the files of programs you have already installed. The scan lasts up to 6 minutes.
  • GridinSoft Anti-Malware scan results

  • When the scan is over, you may choose the action for each detected virus. For all files of [SHORT_NAME] the default option is “Delete”. Press “Apply” to finish the malware removal.
  • GridinSoft Anti-Malware - After Cleaning
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About the author

Robert Bailey

I'm Robert Bailey, a passionate Security Engineer with a deep fascination for all things related to malware, reverse engineering, and white hat ethical hacking.

As a white hat hacker, I firmly believe in the power of ethical hacking to bolster security measures. By identifying vulnerabilities and providing solutions, I contribute to the proactive defense of digital infrastructures.

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