Written by Robert Bailey
Seeing the Ransom:Win32/Bosloki.A detection means that your computer is in big danger. This malware can correctly be named as ransomware – virus which encrypts your files and asks you to pay for their decryption. Stopping it requires some unusual steps that must be done as soon as possible.
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Ransom:Win32/Bosloki.A 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 e-mail messages, clicking the advertisement in the Internet or setting up the program from untrustworthy sources. From the moment it appears, you have a short time to do something about it until it starts its harmful activity. And be sure – it is better not to wait for these destructive actions.

What is Ransom:Win32/Bosloki.A virus?

Ransom:Win32/Bosloki.A is ransomware-type malware. It looks for the documents on your disk, encrypts it, and after that asks you to pay the ransom for getting the decryption key. Besides making your documents inaccessible, this malware additionally does a ton of harm to your system. It changes the networking settings in order to stop you from checking out the elimination tutorials or downloading the antivirus. In rare cases, Ransom:Win32/Bosloki.A can even stop the launching of anti-malware programs.

Ransom:Win32/Bosloki.A Summary

In summary, Ransom:Win32/Bosloki.A virus actions in the infected system are next:

  • SetUnhandledExceptionFilter detected (possible anti-debug);
  • Behavioural detection: Executable code extraction – unpacking;
  • Yara rule detections observed from a process memory dump/dropped files/CAPE;
  • Creates RWX memory;
  • Dynamic (imported) function loading detected;
  • Enumerates running processes;
  • Repeatedly searches for a not-found process, may want to run with startbrowser=1 option;
  • Reads data out of its own binary image;
  • CAPE extracted potentially suspicious content;
  • The binary likely contains encrypted or compressed data.;
  • Authenticode signature is invalid;
  • Creates or sets a registry key to a long series of bytes, possibly to store a binary or malware config;
  • Collects and encrypts information about the computer likely to send to C2 server;
  • Installs itself for autorun at Windows startup;
  • Creates known CypherIT/Frenchy Shellcode mutexes;
  • Encrypting the files kept on the victim’s drives — so the victim cannot open these files;
  • Blocking the launching of .exe files of anti-virus apps
  • Blocking the launching of installation files of anti-malware programs

Ransomware has been a headache for the last 4 years. It is hard to imagine a more harmful virus for both individual users and companies. The algorithms utilized in Ransom:Win32/Bosloki.A (usually, RHA-1028 or AES-256) are not hackable – with minor exclusions. To hack it with a brute force, you need to have a lot more time than our galaxy actually exists, and possibly will exist. But that malware does not do all these unpleasant things without delay – it can take up to several hours to cipher all of your documents. Thus, seeing the Ransom:Win32/Bosloki.A detection is a clear signal that you must begin the clearing process.

Where did I get the Ransom:Win32/Bosloki.A?

Ordinary tactics of Ransom:Win32/Bosloki.A spreading are typical for all other ransomware variants. Those are one-day landing sites where victims are offered to download the free app, so-called bait emails and hacktools. Bait e-mails are a pretty new strategy in malware distribution – you receive the e-mail that imitates some routine notifications about shippings or bank service conditions modifications. Within the e-mail, there is an infected MS Office file, or a link which opens the exploit landing page.

Malicious email spam

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

Avoiding it looks quite simple, however, still demands tons of recognition. Malware can hide in different spots, and it is better to stop it even before it goes into your PC than to rely upon an anti-malware program. Basic cybersecurity awareness is just an essential thing in the modern world, even if your interaction with a computer stays on YouTube videos. That may save you a great deal of time and money which you would spend while seeking a fix guide.

Ransom:Win32/Bosloki.A malware technical details

File Info:

name: AE33A84431F7120D14AD.mlw
path: /opt/CAPEv2/storage/binaries/77a9d3bb30d4c76152b423bed43622b6117ffa61781b69b03b805577fdde018d
crc32: FAE09762
md5: ae33a84431f7120d14ad23962679e770
sha1: 25c20c4f55414b0815194ab53947c6a29472ce7f
sha256: 77a9d3bb30d4c76152b423bed43622b6117ffa61781b69b03b805577fdde018d
sha512: c77e2c090c8d7d267d2b834743629d4aead4cadeddff3705a29265d63a52e6a9d286ee2cd625bd851ba45311606b9f1ce1dfc4f44120a22c03f3b65fe233d7c1
ssdeep: 24576:bAHnh+eWsN3skA4RV1Hom2KXMmHaIDHpKzWH1TNCj5:2h+ZkldoPK8YaIjmEO
type: PE32 executable (GUI) Intel 80386, for MS Windows
tlsh: T1AA35AD02B3D1D076FFAA92739B66F20556BC7D290133852F13982DB9BD701B1263E663
sha3_384: 07f1e68aaa40c9adbc69bba302d29c7f07f56a9ac9532ae6f2ae31df9cae04ccdb3a260525d0c9c2306eaeb434f20f98
ep_bytes: e8c8d00000e97ffeffffcccccccccccc
timestamp: 2019-09-24 13:23:02

Version Info:

FileDescription: EhStorAuthn
OriginalFilename: replace
CompanyName: FirstLogonAnim
FileVersion: 11.229.373.742
LegalCopyright: bootux
ProductName: control
ProductVersion: 792.218.924.482
Translation: 0x0409 0x04b0

Ransom:Win32/Bosloki.A also known as:

Elasticmalicious (high confidence)
K7AntiVirusRiskware ( 0040eff71 )
K7GWRiskware ( 0040eff71 )
ESET-NOD32a variant of Win32/Injector.Autoit.EIJ
AvastAutoIt:Dropper-DL [Trj]
EmsisoftGen:Trojan.Heur.AutoIT.16 (B)
MAXmalware (ai score=87)
CynetMalicious (score: 99)
RisingTrojan.Obfus/Autoit!1.BD7E (CLASSIC)
AVGAutoIt:Dropper-DL [Trj]
CrowdStrikewin/malicious_confidence_80% (D)

How to remove Ransom:Win32/Bosloki.A?

Ransom:Win32/Bosloki.A malware is extremely difficult to delete by hand. It stores its files in numerous places throughout the disk, and can get back itself from one of the parts. Moreover, a number of alterations in the windows registry, networking configurations and also Group Policies are pretty hard to find and return to the initial. It is much better to utilize a special app – exactly, an anti-malware program. GridinSoft Anti-Malware will definitely fit the most ideal for virus elimination reasons.

Why GridinSoft Anti-Malware? It is very light-weight and has its detection databases updated nearly every hour. Furthermore, it does not have such problems and exploits as Microsoft Defender does. The combination of these aspects makes GridinSoft Anti-Malware suitable for getting rid of 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
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About the author

Robert Bailey

Security Engineer. Interested in malware, reverse engineering, white ethical hacking. I like coding, travelling and bikes.

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