What is the Win32:Evo-gen [Trj] virus?
Written by Robert Bailey
Spectating the Win32/Virlock.AC detection name usually means that your PC is in big danger. This computer virus can correctly be named as ransomware – virus which ciphers your files and forces you to pay for their decryption. Deleteing it requires some unusual steps that must be taken as soon as possible.
GridinSoft Anti-Malware Review
It is better to prevent, than repair and repent!
When we talk about the intrusion of unfamiliar programs into your computer’s work, the proverb “Forewarned is forearmed” describes the situation as accurately as possible. Gridinsoft Anti-Malware is exactly the tool that is always useful to have in your armory: fast, efficient, up-to-date. It is appropriate to use it as an emergency help at the slightest suspicion of infection.
Gridinsoft Anti-Malware 6-day trial available.
EULA | Privacy Policy | 10% Off Coupon
Subscribe to our Telegram channel to be the first to know about news and our exclusive materials on information security.

Win32/Virlock.AC detection is a malware detection you can spectate in your system. It frequently appears after the preliminary activities on your computer – opening the untrustworthy e-mail messages, clicking the advertisement in the Web or setting up the program from dubious resources. From the moment it appears, you have a short time to act before it begins its harmful activity. And be sure – it is much better not to await these malicious effects.

What is Win32/Virlock.AC virus?

Win32/Virlock.AC is ransomware-type malware. It searches for the documents on your disks, ciphers it, and after that asks you to pay the ransom for getting the decryption key. Besides making your documents locked, this virus also does a ton of harm to your system. It modifies the networking settings in order to avoid you from looking for the removal guidelines or downloading the anti-malware program. In rare cases, Win32/Virlock.AC can additionally block the launching of anti-malware programs.

Win32/Virlock.AC Summary

Summarizingly, Win32/Virlock.AC virus activities in the infected computer are next:

  • Behavioural detection: Executable code extraction – unpacking;
  • SetUnhandledExceptionFilter detected (possible anti-debug);
  • At least one process apparently crashed during execution;
  • Creates RWX memory;
  • Anomalous file deletion behavior detected (10+);
  • Dynamic (imported) function loading detected;
  • Enumerates running processes;
  • Expresses interest in specific running processes;
  • Repeatedly searches for a not-found process, may want to run with startbrowser=1 option;
  • Manipulates data from or to the Recycle Bin;
  • A process created a hidden window;
  • CAPE extracted potentially suspicious content;
  • The binary likely contains encrypted or compressed data.;
  • Authenticode signature is invalid;
  • Uses Windows utilities for basic functionality;
  • Uses Windows utilities for basic functionality;
  • Checks for the presence of known windows from debuggers and forensic tools;
  • 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;
  • Installs itself for autorun at Windows startup;
  • Attempts to disable UAC;
  • Attempts to modify Explorer settings to prevent file extensions from being displayed;
  • Attempts to modify Explorer settings to prevent hidden files from being displayed;
  • Uses suspicious command line tools or Windows utilities;
  • Encrypting the files located on the target’s disk — so the victim cannot open these files;
  • Blocking the launching of .exe files of anti-malware programs
  • Blocking the launching of installation files of anti-malware apps

Ransomware has actually been a nightmare for the last 4 years. It is hard to realize a more damaging virus for both individual users and companies. The algorithms used in Win32/Virlock.AC (usually, RHA-1028 or AES-256) are not hackable – with minor exclusions. To hack it with a brute force, you need to have more time than our galaxy actually exists, and possibly will exist. However, that malware does not do all these terrible things immediately – it may take up to several hours to cipher all of your documents. Therefore, seeing the Win32/Virlock.AC detection is a clear signal that you must begin the elimination process.

Where did I get the Win32/Virlock.AC?

General ways of Win32/Virlock.AC injection are standard for all other ransomware examples. Those are one-day landing websites where users are offered to download and install the free program, so-called bait e-mails and hacktools. Bait emails are a quite new strategy in malware spreading – you get the email that simulates some normal notifications about shippings or bank service conditions shifts. Inside of the email, there is a malicious MS Office file, or a web 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 fairly easy, however, still demands tons of awareness. Malware can hide in different spots, and it is much better to stop it even before it goes into your PC than to rely on an anti-malware program. Common cybersecurity awareness is just an important item in the modern world, even if your interaction with a computer remains on YouTube videos. That may keep you a great deal of money and time which you would spend while searching for a solution.

Win32/Virlock.AC malware technical details

File Info:

name: 9B6A0134D487DA820FCF.mlw
path: /opt/CAPEv2/storage/binaries/17ec6a866193b8aa24eda60d0abcbab8ce1c88720eb7841b3194c35091fff96f
crc32: D600F6B0
md5: 9b6a0134d487da820fcf3c5ae742e98d
sha1: 855c66d835d8be51172621e31e1eb70200cf8f82
sha256: 17ec6a866193b8aa24eda60d0abcbab8ce1c88720eb7841b3194c35091fff96f
sha512: ce597f89f0e590bf0041b8437627f8aba05f66f6087462430566c798477c8d475ebe3a9ab961952ce83d92cf60080009f570a6f96185ae17df10a0b364a36a7a
ssdeep: 24576:FUm1oTf2uJZ17d9exaAHvCKJXkaCpbF2HTTSfMIIEDYVzmaV4f+Huqzez+oVFXnS:FUm1oTflJZB7exd6akaKMEz+8xS
type: PE32 executable (GUI) Intel 80386, for MS Windows
tlsh: T1A135CFBB5ECB0480E9940D285A3DC536E687AD4B2304C6927742A05D9F221CEF96FDFD
sha3_384: 5e959c76285e1083e34281e069b6ff43cf5803490ad8ca02f73c5db8228c749204d1778e96ffc284443a09a1eadf70d7
ep_bytes: e85c7f11003d2effffff0f8506000000
timestamp: 2015-02-07 09:53:36

Version Info:

0: [No Data]

Win32/Virlock.AC also known as:

Elasticmalicious (high confidence)
K7AntiVirusTrojan ( 0040fa481 )
K7GWTrojan ( 0040fa481 )
ESET-NOD32a variant of Win32/Virlock.AC
AvastWin32:SwPatch [Wrm]
SophosML/PE-A + W32/VirRnsm-C
VIPREVirus.Win32.Nabucur.b (v)
SentinelOneStatic AI – Malicious PE
EmsisoftWin32.Virlock.Gen.2 (B)
CynetMalicious (score: 100)
MAXmalware (ai score=82)
RisingMalware.Heuristic!ET#100% (RDMK:cmRtazpMrlXSeKdmt4SNX7J3gDNp)
AVGWin32:SwPatch [Wrm]
PandaGeneric Suspicious
CrowdStrikewin/malicious_confidence_100% (D)

How to remove Win32/Virlock.AC?

Win32/Virlock.AC malware is extremely hard to eliminate manually. It places its files in multiple places throughout the disk, and can recover itself from one of the parts. Moreover, countless changes in the windows registry, networking configurations and also Group Policies are pretty hard to identify and change to the initial. It is much better to use a specific tool – exactly, an anti-malware app. GridinSoft Anti-Malware will fit the most ideal for malware elimination goals.

Why GridinSoft Anti-Malware? It is pretty light-weight and has its databases updated almost every hour. Moreover, it does not have such bugs and weakness as Microsoft Defender does. The combination of these details makes GridinSoft Anti-Malware suitable for removing malware of any form.

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
User Review
0 (0 votes)
Comments Rating 0 (0 reviews)

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.

Leave a Reply