Trojan.SmokeLoader

Written by Robert Bailey

What is Trojan.SmokeLoader infection?

In this article you will certainly locate concerning the interpretation of Trojan.SmokeLoader as well as its unfavorable impact on your computer. Such ransomware are a type of malware that is specified by online scams to require paying the ransom by a sufferer.

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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.
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Most of the cases, Trojan.SmokeLoader virus will certainly instruct its targets to launch funds move for the purpose of reducing the effects of the modifications that the Trojan infection has actually introduced to the victim’s gadget.

Trojan.SmokeLoader Summary

These modifications 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.
  • 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.
  • Drops a binary and executes it. Trojan-Downloader installs itself to the system and waits until an Internet connection becomes available to connect to a remote server or website in order to download additional malware onto the infected computer.
  • Unconventionial language used in binary resources: Hebrew;
  • The binary likely contains encrypted or compressed data. In this case, encryption is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Attempts to repeatedly call a single API many times in order to delay analysis time. This significantly complicates the work of the virus analyzer. Typical malware tactics!
  • 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
  • Creates a copy of itself;
  • Anomalous binary characteristics. This is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Ciphering the files found on the target’s hard drive — so the victim can no more utilize the information;
  • Preventing regular accessibility to the sufferer’s workstation;

Trojan.SmokeLoader

One of the most typical channels where Trojan.SmokeLoader Trojans are infused are:

  • By means of phishing emails;
  • As an effect of user ending up on a resource that holds a malicious software program;

As soon as the Trojan is efficiently injected, it will certainly either cipher the information on the target’s computer or prevent the gadget from working in a correct manner – while likewise positioning a ransom note that mentions the demand for the targets to impact the repayment for the function of decrypting the papers or recovering the documents system back to the preliminary condition. In a lot of instances, the ransom note will certainly show up when the customer reboots the COMPUTER after the system has actually already been harmed.

Trojan.SmokeLoader distribution networks.

In numerous corners of the globe, Trojan.SmokeLoader grows by jumps and also bounds. Nevertheless, the ransom money notes and also methods of obtaining the ransom quantity may vary relying on certain local (regional) settings. The ransom notes and also methods of obtaining the ransom money quantity might differ depending on particular neighborhood (regional) setups.

Ransomware injection

For instance:

    Faulty informs regarding unlicensed software program.

    In particular areas, the Trojans usually wrongfully report having discovered some unlicensed applications enabled on the target’s tool. The sharp after that requires the customer to pay the ransom.

    Faulty declarations regarding prohibited web content.

    In nations where software piracy is much less prominent, this approach is not as effective for the cyber frauds. Alternatively, the Trojan.SmokeLoader popup alert may falsely declare to be stemming from a police institution as well as will report having situated child pornography or various other prohibited information on the gadget.

    Trojan.SmokeLoader popup alert may wrongly assert to be obtaining from a legislation enforcement establishment as well as will report having situated child pornography or other unlawful data on the gadget. The alert will likewise contain a requirement for the customer to pay the ransom money.

Technical details

File Info:

crc32: 26FCF732
md5: 42507a339c1787ec662bc640fe12bad9
name: 42507A339C1787EC662BC640FE12BAD9.mlw
sha1: 669910f7947a634510c27aa9944feb2c23cc4f94
sha256: 7faf02dc9d1b70085671412a7f1cac66b7dc067106070c1e3736cf708641706c
sha512: b87db5f0d56faac431cfb60cbe631c4ef1afb8fc67f3689e3919da7ab8972858b7d79dc67b25459d3f5b2122fd3e35ed4fe2440dc87370277c670c709e0194d2
ssdeep: 12288:8IKXydiF6ALAWuIP4znPuQODpG/BoikYpY21IO/EBiWOP5lVUs:FGkWuy4znPdSpG/BkOY1O//5x
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

LegalCopyright: Copyright (C) 2017, dfgergethth
FileVersion: 6.3.6.8
ProductVersion: 6.3.6.8
Translation: 0x0809 0x04b0

Trojan.SmokeLoader also known as:

GridinSoft Trojan.Ransom.Gen
Bkav W32.AIDetect.malware1
Elastic malicious (high confidence)
DrWeb Trojan.DownLoader26.13137
Cynet Malicious (score: 100)
CAT-QuickHeal Trojan.Chapak.ZZ6
ALYac Trojan.BRMon.Gen.3
Cylance Unsafe
Zillya Trojan.NeutrinoPOS.Win32.107
Sangfor Trojan.Win32.Save.a
CrowdStrike win/malicious_confidence_90% (D)
K7GW Trojan ( 0056f4141 )
K7AntiVirus Trojan ( 003e58dd1 )
Cyren W32/S-b2c95f94!Eldorado
Symantec Packed.Generic.525
ESET-NOD32 a variant of Win32/Kryptik.GCKU
APEX Malicious
Avast Win32:Malware-gen
ClamAV Win.Packer.Crypter-6539596-1
Kaspersky HEUR:Trojan.Win32.Generic
BitDefender Trojan.BRMon.Gen.3
NANO-Antivirus Trojan.Win32.Miner.exjsji
MicroWorld-eScan Trojan.BRMon.Gen.3
Tencent Win32.Trojan.Generic.Palk
Ad-Aware Trojan.BRMon.Gen.3
Sophos Mal/Generic-R + Mal/GandCrab-D
Comodo TrojWare.Win32.Ransom.Foreign.A@7i19jk
BitDefenderTheta Gen:NN.ZexaF.34628.Iu0@a8MJIDeG
VIPRE Trojan.Win32.Generic!BT
TrendMicro Ransom_HPGANDCRAB.SMONT
McAfee-GW-Edition BehavesLike.Win32.Generic.hc
FireEye Generic.mg.42507a339c1787ec
Emsisoft Trojan.BRMon.Gen.3 (B)
SentinelOne Static AI – Malicious PE
Jiangmin Trojan.Banker.NeutrinoPOS.bs
Avira HEUR/AGEN.1126869
eGambit Unsafe.AI_Score_98%
Kingsoft Win32.Troj.Banker.(kcloud)
Microsoft Trojan:Win32/Gandcrab.GM!MTB
ZoneAlarm HEUR:Trojan.Win32.Generic
GData Win32.Trojan-Ransom.GandCrab.N
AhnLab-V3 Trojan/Win32.MalCrypted.R244796
Acronis suspicious
McAfee Packed-ZG!42507A339C17
MAX malware (ai score=99)
VBA32 TrojanRansom.Foreign
Malwarebytes Trojan.SmokeLoader
Panda Trj/Genetic.gen
TrendMicro-HouseCall Ransom_HPGANDCRAB.SMONT
Rising Ransom.GandCrab!1.B152 (CLOUD)
Ikarus Trojan.Win32.Crypt
MaxSecure Trojan.Malware.300983.susgen
Fortinet W32/GenKryptik.CNAR!tr
AVG Win32:Malware-gen
Qihoo-360 Win32/Ransom.GandCrab.HwoC6REA

How to remove Trojan.SmokeLoader 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 Trojan.SmokeLoader 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 Trojan.SmokeLoader 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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