Win32/Injector.CRRF

What is Win32/Injector.CRRF infection?

In this post you will certainly locate concerning the meaning of Win32/Injector.CRRF as well as its negative impact on your computer system. Such ransomware are a type of malware that is elaborated by on the internet fraudulences to require paying the ransom money by a sufferer.

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In the majority of the situations, Win32/Injector.CRRF infection will advise its sufferers to start funds move for the purpose of counteracting the modifications that the Trojan infection has introduced to the target’s tool.

Win32/Injector.CRRF Summary

These adjustments can be as follows:

  • Executable code extraction. Cybercriminals often use binary packers to hinder the malicious code from reverse-engineered by malware analysts. A packer is a tool that compresses, encrypts, and modifies a malicious file’s format. Sometimes packers can be used for legitimate ends, for example, to protect a program against cracking or copying.
  • Injection (inter-process);
  • Injection (Process Hollowing);
  • Compression (or decompression);
  • Creates RWX memory. There is a security trick with memory regions that allows an attacker to fill a buffer with a shellcode and then execute it. Filling a buffer with shellcode isn’t a big deal, it’s just data. The problem arises when the attacker is able to control the instruction pointer (EIP), usually by corrupting a function’s stack frame using a stack-based buffer overflow, and then changing the flow of execution by assigning this pointer to the address of the shellcode.
  • Reads data out of its own binary image. The trick that allows the malware to read data out of your computer’s memory.

    Everything you run, type, or click on your computer goes through the memory. This includes passwords, bank account numbers, emails, and other confidential information. With this vulnerability, there is the potential for a malicious program to read that data.

  • A process created a hidden window;
  • The binary likely contains encrypted or compressed data. In this case, encryption is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Uses Windows utilities for basic functionality;
  • Attempts to remove evidence of file being downloaded from the Internet;
  • Attempts to delete volume shadow copies;
  • Executed a process and injected code into it, probably while unpacking;
  • Exhibits behavior characteristic of Alphacrypt/Teslacrypt ransomware;
  • Modifies boot configuration settings;
  • Installs itself for autorun at Windows startup. There is simple tactic using the Windows startup folder located at:
    C:\Users\[user-name]\AppData\Roaming\Microsoft\Windows\StartMenu\Programs\Startup. Shortcut links (.lnk extension) placed in this folder will cause Windows to launch the application each time [user-name] logs into Windows.

    The registry run keys perform the same action, and can be located in different locations:

    • HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Run
    • HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run
    • HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\RunOnce
    • HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\RunOnce
  • Writes a potential ransom message to disk;
  • Attempts to identify installed AV products by registry key;
  • Creates a known TeslaCrypt/AlphaCrypt ransomware decryption instruction / key file.;
  • Anomalous binary characteristics. This is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Uses suspicious command line tools or Windows utilities;
  • Ciphering the records situated on the sufferer’s hard disk — so the sufferer can no longer utilize the information;
  • Preventing normal accessibility to the sufferer’s workstation. This is the typical behavior of a virus called locker. It blocks access to the computer until the victim pays the ransom.

Win32/Injector.CRRF

One of the most typical networks where Win32/Injector.CRRF Trojans are injected are:

  • By methods of phishing emails;
  • As a repercussion of customer ending up on a source that organizes a destructive software program;

As soon as the Trojan is efficiently injected, it will either cipher the information on the sufferer’s PC or prevent the tool from functioning in a correct fashion – while additionally putting a ransom note that mentions the requirement for the sufferers to impact the settlement for the objective of decrypting the records or bring back the file system back to the first condition. In the majority of circumstances, the ransom note will come up when the client reboots the COMPUTER after the system has currently been harmed.

Win32/Injector.CRRF circulation channels.

In different corners of the globe, Win32/Injector.CRRF grows by jumps as well as bounds. However, the ransom notes and tricks of obtaining the ransom quantity might differ depending upon specific local (regional) setups. The ransom notes as well as tricks of extorting the ransom amount might vary depending on particular neighborhood (regional) settings.

Ransomware injection

As an example:

    Faulty notifies about unlicensed software program.

    In particular locations, the Trojans commonly wrongfully report having actually detected some unlicensed applications allowed on the victim’s device. The alert after that demands the individual to pay the ransom money.

    Faulty statements regarding illegal content.

    In countries where software piracy is much less preferred, this technique is not as effective for the cyber frauds. Alternatively, the Win32/Injector.CRRF popup alert might incorrectly assert to be deriving from a law enforcement organization as well as will certainly report having situated kid porn or various other illegal information on the tool.

    Win32/Injector.CRRF popup alert might wrongly claim to be deriving from a legislation enforcement establishment and will report having situated kid pornography or various other prohibited data on the device. The alert will similarly contain a need for the user to pay the ransom money.

Technical details

File Info:

crc32: 6F9945CC
md5: ceda1c68099141aacb562c69a3a00ef3
name: CEDA1C68099141AACB562C69A3A00EF3.mlw
sha1: f6c90010814d4b952339edc9d9c36bab52fbad72
sha256: da84c235d55465296a40d62304141ddc0a4ac527e5799c9b2f1af06d8ad01f70
sha512: 32be711360ad6e8e5e58b59933d7105effcc4aa926a570566a489e263a7ad8f042ae33a4dcc83628d4284768b894f889c9b6b8c9039eabbd03aa332958c212bd
ssdeep: 12288:UH2tiySKXkTDj0jxwn8mHiCA092tiySKXkTDj0jxwnvSxU/e:7AKXeDj0jkDA0QAKXeDj0jDf
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

LegalCopyright: Copyright (C) 2016
InternalName: Artery
FileVersion: 152, 162, 60, 63
CompanyName: eSnips Ltd.
PrivateBuild: 38, 97, 22, 219
LegalTrademarks: Unbar
Comments: Alighting
ProductName: Silvering Terrains
SpecialBuild: 171, 248, 221, 121
ProductVersion: 202, 130, 29, 218
FileDescription: Snows Amplification Travails
OriginalFilename: Aintl.EXE

Win32/Injector.CRRF also known as:

GridinSoft Trojan.Ransom.Gen
Bkav W32.AIDetect.malware2
K7AntiVirus Trojan ( 0055e3991 )
Elastic malicious (high confidence)
DrWeb Trojan.Encoder.3722
Cynet Malicious (score: 100)
CAT-QuickHeal Ransom.TeslaCrypt.C5
ALYac Trojan.Agent.BQCS
Cylance Unsafe
Zillya Trojan.Injector.Win32.359478
Sangfor Trojan.Win32.Save.a
CrowdStrike win/malicious_confidence_100% (D)
K7GW Trojan ( 0055e3991 )
Cybereason malicious.809914
Baidu Win32.Trojan.Filecoder.k
Cyren W32/S-cb23d1ef!Eldorado
Symantec Ransom.TeslaCrypt!g1
ESET-NOD32 a variant of Win32/Injector.CRRF
APEX Malicious
Avast Win32:Trojan-gen
Kaspersky Packed.Win32.Tpyn
BitDefender Trojan.Agent.BQCS
NANO-Antivirus Trojan.Win32.Encoder.eaaudz
ViRobot Trojan.Win32.TeslaCrypt.495616
SUPERAntiSpyware Trojan.Agent/Gen-Dropper
MicroWorld-eScan Trojan.Agent.BQCS
Tencent Malware.Win32.Gencirc.10c4086a
Ad-Aware Trojan.Agent.BQCS
Sophos ML/PE-A + Mal/Ransom-EC
BitDefenderTheta Gen:NN.ZexaF.34670.Eq1@aSLtllb
VIPRE Trojan.Win32.Generic!BT
TrendMicro Ransom_HPLOCKY.SM1
McAfee-GW-Edition Ransomware-FDS!CEDA1C680991
FireEye Generic.mg.ceda1c68099141aa
Emsisoft Trojan.Agent.BQCS (B)
SentinelOne Static AI – Malicious PE
Jiangmin Trojan.Bitman.fa
Webroot Trojan.Dropper.Gen
Avira HEUR/AGEN.1124982
eGambit Unsafe.AI_Score_100%
Microsoft Ransom:Win32/Tescrypt.E
Arcabit Trojan.Agent.BQCS
ZoneAlarm Packed.Win32.Tpyn
GData Trojan.Agent.BQCS
AhnLab-V3 Trojan/Win32.Teslacrypt.C1324721
Acronis suspicious
McAfee Ransomware-FDS!CEDA1C680991
MAX malware (ai score=83)
VBA32 Hoax.Bitman
Malwarebytes Ransom.TeslaCrypt
Panda Trj/TeslaCrypt.A
TrendMicro-HouseCall Ransom_HPLOCKY.SM1
Rising Trojan.Ransom-Tesla!1.A322 (RDMK:cmRtazqkXx7a4RxvQoqxfMO1hCAz)
Ikarus Trojan-Ransom.CryptoWall3
Fortinet W32/Injector.CRRF!tr
AVG Win32:Trojan-gen
Qihoo-360 HEUR/QVM07.1.673E.Malware.Gen

How to remove Win32/Injector.CRRF ransomware?

Unwanted application has ofter come with other viruses and spyware. This threats can steal account credentials, or crypt your documents for ransom.
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There is no better way to recognize, remove and prevent PC threats than to use an anti-malware software from GridinSoft2.

Download GridinSoft Anti-Malware.

You can download GridinSoft Anti-Malware by clicking the button below:

Run the setup file.

When setup file has finished downloading, double-click on the setup-antimalware-fix.exe file to install GridinSoft Anti-Malware on your system.

Run Setup.exe

An User Account Control asking you about to allow GridinSoft Anti-Malware to make changes to your device. So, you should click “Yes” to continue with the installation.

GridinSoft Anti-Malware Setup

Press “Install” button.

GridinSoft Anti-Malware Install

Once installed, Anti-Malware will automatically run.

GridinSoft Anti-Malware Splash-Screen

Wait for the Anti-Malware scan to complete.

GridinSoft Anti-Malware will automatically start scanning your system for Win32/Injector.CRRF files and other malicious programs. This process can take a 20-30 minutes, so I suggest you periodically check on the status of the scan process.

GridinSoft Anti-Malware Scanning

Click on “Clean Now”.

When the scan has finished, you will see the list of infections that GridinSoft Anti-Malware has detected. To remove them click on the “Clean Now” button in right corner.

GridinSoft Anti-Malware Scan Result

Are Your Protected?

GridinSoft Anti-Malware will scan and clean your PC for free in the trial period. The free version offer real-time protection for first 2 days. If you want to be fully protected at all times – I can recommended you to purchase a full version:

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If the guide doesn’t help you to remove Win32/Injector.CRRF you can always ask me in the comments for getting help.

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References

  1. GridinSoft Anti-Malware Review from HowToFix site: https://howtofix.guide/gridinsoft-anti-malware/
  2. More information about GridinSoft products: https://gridinsoft.com/products/

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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