GandCrab4 Ransomware

GandCrab4 Ransomware Description

The GandCrab4 Ransomware is a ransomware Trojan, which is the fourth variant of the GandCrab Ransomware released. The GandCrab4 Ransomware was observed on July 2, 2018, and seems to have better obfuscation and encryption than its predecessors. The GandCrab4 Ransomware seems to be designed to carry out its attack offline, and it also seems that the criminals responsible for this attack are now targeting it towards high-profile victims rather than individual computer users.

The GandCrab4 Ransomware's Intended Targets

The GandCrab4 Ransomware is capable of attacking most computers running the Windows operating system. The GandCrab4 Ransomware seems to be optimized to carry out its attack on some server environments, and it is likely that Web servers and databases associated with companies or websites are the intended targets, which is likelier to make the criminals more money than attacking individual computer users. Like its predecessors, the main way in which the GandCrab4 Ransomware is distributed is through corrupted email attachments and, in the case of the GandCrab4 Ransomware, also as pirated software and video game cracked versions. The GandCrab4 Ransomware has been observed being distributed online disguised as an aiming bot for popular first-person shooter games specifically.

How the GandCrab4 Ransomware Carries Out Its Atta

The GandCrab4 Ransomware targets the user-generated files, using strong encryption to make the victim's files inaccessible. The GandCrab4 Ransomware will encrypt a wide variety of media files, databases, documents, and numerous other file types. The files that threats like the GandCrab4 Ransomware will target in their attacks include:

.3dm, .3g2, .3gp, .7zip, .aaf, .accdb, .aep, .aepx, .aet, .ai, .aif, .as, .as3, .asf, .asp, .asx, .avi, .bmp, .c, .class, .cpp, .cs, .csv, .dat, .db, .dbf, .doc, .docb, .docm, .docx, .dot, .dotm, .dotx, .dwg, .dxf, .efx, .eps, .fla, .flv, .gif, .h, .idml, .iff, .indb, .indd, .indl, .indt, .inx, .jar, .java, .jpeg, .jpg, .js, .m3u, .m3u8, .m4u, .max, .mdb, .mid, .mkv, .mov, .mp3, .mp4, .mpa, .mpeg, .mpg, .msg, .pdb, .pdf, .php, .plb, .pmd, .png, .pot, .potm, .potx, .ppam, .ppj, .pps, .ppsm, .ppsx, .ppt, .pptm, .pptx, .prel, .prproj, .ps, .psd, .py, .ra, .rar, .raw, .rb, .rtf, .sdf, .sdf, .ses, .sldm, .sldx, .sql, .svg, .swf, .tif, .txt, .vcf, .vob, .wav, .wma, .wmv, .wpd, .wps, .xla, .xlam, .xll, .xlm, .xls, .xlsb, .xlsm, .xlsx, .xlt, .xltm, .xltx, .xlw, .xml, .xqx, .xqx, .zip.

The GandCrab4 Ransomware will mark the files it encrypts with the file extension '.KRAB' added to the end of the file's name.

The GandCrab4 Ransomware's Ransom Demand

After the GandCrab4 Ransomware encrypts the victim's files, the GandCrab4 Ransomware delivers a ransom note. The GandCrab4 Ransomware's ransom note takes the form of a text file named 'KRAB-DECRYPT.txt.' which will appear on the infected computer's desktop. The text of the GandCrab4 Ransomware ransom note reads:

All your files documents, photos, databases and other important files are encrypted and have the extension: .KRAB
The only method of recovering files is to purchase a private key. It is on our server and only we can recover your files.
The server with your key is in a closed network TOR. You can get there by the following ways:
1. Download Tor browser – h[tt]ps://www.torproject[.]org/
2. Install Tor browser
3. Open Tor Browser
4. Open link in tor browser: h[tt]ps://gandcrabmfe6mnef[.]onion/[unique string]
5. Follow the instructions on this page.
On our page you will see instructions on payment and get the opportunity to decrypt 1 file for free.'

The victims of the GandCrab4 Ransomware attack are asked to pay 800 USD approximately in Bitcoin in exchange for a decryption tool. However, this payment is not recommended at all, as well as contact with the criminals. In most cases, the criminals will not restore the victim's files, and they will likely target the victim with additional malware. Furthermore, paying these ransoms allows the criminals to continue creating and distributing threats like the GandCrab4 Ransomware. To protect your machine against these threats, you should have file backups on the cloud or an offline location.

Do You Suspect Your PC May Be Infected with GandCrab4 Ransomware & Other Threats? Scan Your PC with SpyHunter

SpyHunter is a powerful malware remediation and protection tool designed to help provide PC users with in-depth system security analysis, detection and removal of a wide range of threats like GandCrab4 Ransomware as well as a one-on-one tech support service. Download SpyHunter's FREE Malware Remover
Note: SpyHunter's scanner is only for malware detection. If SpyHunter detects malware on your PC, you will need to purchase SpyHunter's malware removal tool to remove the malware threats. Read more on SpyHunter. Free Remover allows you to run a one-off scan and receive, subject to a 48-hour waiting period, one remediation and removal. Free Remover subject to promotional details and Special Promotion Terms. To understand our policies, please also review our EULA, Privacy Policy and Threat Assessment Criteria. If you no longer wish to have SpyHunter installed on your computer, follow these steps to uninstall SpyHunter.

Security Doesn't Let You Download SpyHunter or Access the Internet?

Solutions: Your computer may have malware hiding in memory that prevents any program, including SpyHunter, from executing on your computer. Follow to download SpyHunter and gain access to the Internet:
  • Use an alternative browser. Malware may disable your browser. If you're using IE, for example, and having problems downloading SpyHunter, you should open Firefox, Chrome or Safari browser instead.
  • Use a removable media. Download SpyHunter on another clean computer, burn it to a USB flash drive, DVD/CD, or any preferred removable media, then install it on your infected computer and run SpyHunter's malware scanner.
  • Start Windows in Safe Mode. If you can not access your Window's desktop, reboot your computer in "Safe Mode with Networking" and install SpyHunter in Safe Mode.
  • IE Users: Disable proxy server for Internet Explorer to browse the web with Internet Explorer or update your anti-spyware program. Malware modifies your Windows settings to use a proxy server to prevent you from browsing the web with IE.
If you still can't install SpyHunter? View other possible causes of installation issues.

Technical Information

File System Details

GandCrab4 Ransomware creates the following file(s):
# File Name Size MD5 Detection Count
1 %TEMP%bec2.tmp.exe 128,000 f5ab356fbb5adb2e8d03a4ba166704ad 1
2 0802(16).exe 131,587 2abb7a89b55d46c1b847904099ce43c0 0
3 0YO0WG7U0X.exe 131,584 c1684f3b4af35a1e5bdce409cfb26b77 0
4 1.exe 131,584 4f3fb7024655996d685ab75ce3188e29 0
5 3.exe 131,584 9cdfaacb1b0b916d0904df2cdbcc548f 0
6 4GCZK6W7.exe 136,192 288b741eacadf546ce046f814b4041de 0
7 7c5e6320254d3249787312cfd21715d2374319016eb38fd1f17553b946568755.exe 301,856 44894de21b880ecd3755f33fcf4141e2 0
8 9f1aeca41d2da7ef2a441961077474f1_rn.bin 131,584 f43eba1eb3056b453cd21b6dd903be86 0
9 Crack_Ghost_Mouse_Auto_Clicker.exe 210,432 97a910c50171124f2cd8cfc7a4f2fa4f 0
10 TempDkh72.Exe 126,464 2c79b1c6565616109cd38bd13e1b6019 0
11 base64.bin 125,440 9a680a7ff23746d92f4bb274c50be4a5 0
12 d037789b5cb4fe596173e242979da10bc385e0d82bd65d3ee7eca74b52416621.exe 123,680 119e0ab423a589300abdf2cd24acd2b0 0
13 d4dbce48727ef125396060c8c8743657c8b6bd7c1cdbb443b7be6780fb9f8dbe.exe 301,856 d88175973b609831b0f4c52e1f386d1a 0
14 d77378dcc42b912e514d3bd4466cdda050dda9b57799a6c97f70e8489dd8c8d0.exe 187,392 07fadb006486953439ce0092651fd7a6 0
15 gc.exe 143,360 4893880bce579d21085eacea2f6d2b8e 0
More files

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