Ransom:Win32/Teerac.B

What is Ransom:Win32/Teerac.B infection?

In this post you will find about the definition of Ransom:Win32/Teerac.B and also its unfavorable impact on your computer system. Such ransomware are a form of malware that is specified by on-line frauds to demand paying the ransom by a victim.

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Most of the situations, Ransom:Win32/Teerac.B infection will instruct its victims to launch funds transfer for the function of neutralizing the changes that the Trojan infection has actually presented to the sufferer’s device.

Ransom:Win32/Teerac.B Summary

These modifications can be as complies with:

  • 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);
  • 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.
  • A process attempted to delay the analysis task.;
  • 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;
  • Unconventionial binary language: Chinese (Simplified);
  • Unconventionial language used in binary resources: Chinese (Simplified);
  • The binary likely contains encrypted or compressed data. In this case, encryption is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Executed a process and injected code into it, probably while unpacking;
  • Attempts to delete volume shadow copies;
  • A system process is generating network traffic likely as a result of process injection;
  • Behavior consistent with a dropper attempting to download the next stage.;
  • 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
  • Attempts to modify proxy settings. This trick used for inject malware into connection between browser and server;
  • Attempts to modify browser security settings;
  • Creates a copy of itself;
  • Harvests information related to installed mail clients;
  • Collects information to fingerprint the system. There are behavioral human characteristics that can be used to digitally identify a person to grant access to systems, devices, or data. Unlike passwords and verification codes, fingerprints are fundamental parts of user’s identities. Among the threats blocked on biometric data processing and storage systems is spyware, the malware used in phishing attacks (mostly spyware downloaders and droppers), ransomware, and Banking Trojans as posing the greatest danger.
  • 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 papers found on the target’s hard disk — so the victim can no longer utilize the data;
  • Preventing normal access to the victim’s workstation. This is the typical behavior of a virus called locker. It blocks access to the computer until the victim pays the ransom.

Ransom:Win32/Teerac.B

The most common networks through which Ransom:Win32/Teerac.B are infused are:

  • By means of phishing emails;
  • As a repercussion of user ending up on a source that hosts a destructive software;

As quickly as the Trojan is efficiently injected, it will certainly either cipher the information on the sufferer’s PC or avoid the tool from operating in a proper way – while likewise positioning a ransom money note that states the requirement for the sufferers to impact the settlement for the function of decrypting the documents or recovering the file system back to the initial condition. In the majority of circumstances, the ransom money note will come up when the client reboots the PC after the system has actually already been damaged.

Ransom:Win32/Teerac.B circulation channels.

In different edges of the globe, Ransom:Win32/Teerac.B expands by leaps as well as bounds. However, the ransom notes and also techniques of obtaining the ransom money quantity might differ depending upon certain local (local) setups. The ransom notes and also methods of obtaining the ransom money quantity may vary depending on certain local (local) settings.

Ransomware injection

For example:

    Faulty alerts about unlicensed software program.

    In certain areas, the Trojans commonly wrongfully report having actually detected some unlicensed applications made it possible for on the target’s gadget. The sharp after that demands the user to pay the ransom money.

    Faulty declarations regarding illegal web content.

    In nations where software application piracy is much less popular, this technique is not as effective for the cyber scams. Additionally, the Ransom:Win32/Teerac.B popup alert might incorrectly declare to be deriving from a police establishment and will certainly report having situated child porn or various other unlawful data on the device.

    Ransom:Win32/Teerac.B popup alert may incorrectly claim to be deriving from a legislation enforcement organization and also will report having located youngster porn or other illegal data on the device. The alert will similarly contain a requirement for the user to pay the ransom money.

Technical details

File Info:

crc32: 2961BC99
md5: 06b30f8174287c7de21038aaa0ab065f
name: 06B30F8174287C7DE21038AAA0AB065F.mlw
sha1: 0f486909544dd2ce4f89f463393d738848e4520a
sha256: 73646b0af35394bca0e93842cd7c8aeee4d023df8cb2bd860a8bbb9626a4295e
sha512: 05c6288101db79a61c2e0d797e3225ca0835a69c95972c82159eb0122c557c63d4063abc7827d2522cbdb4c545c70dd5bf77fab7a57a08f528220e726f7bcc79
ssdeep: 12288:NHL2Pn4djKxRoO3/HJJboeMOkDwy7FdYppldhpU/Ep2q3rrH5aY:NrXKxRoOPHJJo7OrAgplLpUS7bL5aY
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

LegalCopyright: Copyright (C) eagleGet 2014
InternalName: EGMonito
FileVersion: 2, 0, 3, 6
ProductName: EGMonito Application
ProductVersion: 2, 0, 3, 6
FileDescription: EGMonito Application
OriginalFilename: EGMonito.exe
Translation: 0x0804 0x04b0

Ransom:Win32/Teerac.B also known as:

GridinSoft Trojan.Ransom.Gen
Bkav W32.AIDetect.malware2
K7AntiVirus Trojan ( 005224381 )
Elastic malicious (high confidence)
DrWeb Trojan.Encoder.5049
Cynet Malicious (score: 100)
ALYac Trojan.Ransom.Cerber.1
Malwarebytes Malware.AI.2956023458
Zillya Trojan.Filecoder.Win32.2914
Sangfor Trojan.Win32.Save.a
CrowdStrike win/malicious_confidence_100% (D)
Alibaba Ransom:Win32/Teerac.e53e5ccb
K7GW Trojan ( 004f42fd1 )
Cybereason malicious.174287
Baidu Win32.Trojan.Kryptik.anp
Cyren W32/Cerber.F.gen!Eldorado
Symantec Ransom.Enciphered
ESET-NOD32 Win32/Filecoder.TorrentLocker.C
APEX Malicious
Avast Win32:Trojan-gen
ClamAV Win.Ransomware.Cerber-7571364-0
Kaspersky HEUR:Packed.Win32.Mentiger.gen
BitDefender Trojan.Ransom.Cerber.1
NANO-Antivirus Trojan.Win32.Mentiger.evdick
SUPERAntiSpyware Ransom.Crypto/Variant
MicroWorld-eScan Trojan.Ransom.Cerber.1
Tencent Malware.Win32.Gencirc.114b79f4
Ad-Aware Trojan.Ransom.Cerber.1
Sophos Mal/Generic-R + Troj/LdMon-AL
Comodo TrojWare.Win32.Kryptik.FBWM@6gt9t1
BitDefenderTheta Gen:NN.ZexaF.34670.Pq0@aq2aB8oj
VIPRE Trojan.Win32.Generic!BT
TrendMicro Ransom_CRYPTLOCK.DLZ
McAfee-GW-Edition BehavesLike.Win32.Dropper.jh
FireEye Generic.mg.06b30f8174287c7d
Emsisoft Trojan.Ransom.Cerber.1 (B)
SentinelOne Static AI – Malicious PE
Jiangmin Downloader.LMN.dqo
Webroot Trojan.Dropper.Gen
Avira HEUR/AGEN.1117378
Antiy-AVL RiskWare[Downloader]/Win32.LMN
Kingsoft Win32.Troj.Generic_a.a.(kcloud)
Microsoft Ransom:Win32/Teerac.B
AegisLab Hacktool.Win32.Mentiger.x!c
GData Trojan.Ransom.Cerber.1
AhnLab-V3 Trojan/Win32.Cryptolocker.C1501778
Acronis suspicious
McAfee RDN/Generic PUP.aro
MAX malware (ai score=100)
VBA32 BScope.TrojanRansom.Ranscrape
Panda Trj/RansomCrypt.E
TrendMicro-HouseCall Ransom_CRYPTLOCK.DLZ
Rising Trojan.Kryptik!1.AE9C (CLOUD)
Yandex PUA.Downloader!twTmrCMmXIY
Ikarus Trojan.Win32.Filecoder
MaxSecure Trojan.Malware.5357318.susgen
Fortinet W32/Dridex.DD!tr
AVG Win32:Trojan-gen
Paloalto generic.ml
Qihoo-360 Win32/Ransom.TorrentLocker.HxQB78oA

How to remove Ransom:Win32/Teerac.B ransomware?

Unwanted application has ofter come with other viruses and spyware. This threats can steal account credentials, or crypt your documents for ransom.
Reasons why I would recommend GridinSoft1

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 Ransom:Win32/Teerac.B 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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Full version of GridinSoft Anti-Malware

If the guide doesn’t help you to remove Ransom:Win32/Teerac.B 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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