Adware.ISTBar

What is the Win32:Evo-gen [Trj] virus?
Written by Robert Bailey

What is Adware.ISTBar infection?

In this post you will certainly discover regarding the interpretation of Adware.ISTBar and also its adverse impact on your computer system. Such ransomware are a form of malware that is elaborated by on the internet scams to demand paying the ransom money by a victim.

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In the majority of the instances, Adware.ISTBar infection will advise its targets to launch funds transfer for the purpose of neutralizing the modifications that the Trojan infection has actually introduced to the victim’s device.

Adware.ISTBar Summary

These alterations can be as follows:

  • Reads data out of its own binary image;
  • Unconventionial language used in binary resources: Spanish (Mexican);
  • The binary likely contains encrypted or compressed data.;
  • The executable is compressed using UPX;
  • Network activity detected but not expressed in API logs;
  • Ciphering the documents located on the victim’s hard disk drive — so the victim can no more use the data;
  • Preventing normal access to the victim’s workstation;

Adware.ISTBar

The most typical channels where Adware.ISTBar are injected are:

  • By methods of phishing e-mails;
  • As a consequence of user winding up on a source that holds a harmful software;

As soon as the Trojan is effectively infused, it will either cipher the data on the sufferer’s computer or protect against the device from functioning in an appropriate manner – while likewise putting a ransom note that states the demand for the victims to effect the settlement for the objective of decrypting the papers or restoring the file system back to the initial problem. In the majority of instances, the ransom note will come up when the customer restarts the COMPUTER after the system has already been damaged.

Adware.ISTBar distribution channels.

In various corners of the world, Adware.ISTBar grows by leaps as well as bounds. However, the ransom money notes and techniques of extorting the ransom money amount may vary depending upon specific regional (regional) setups. The ransom notes and also techniques of extorting the ransom money quantity might differ depending on particular neighborhood (regional) setups.

Ransomware injection

For instance:

    Faulty notifies regarding unlicensed software program.

    In specific areas, the Trojans commonly wrongfully report having actually discovered some unlicensed applications made it possible for on the sufferer’s device. The sharp after that requires the individual to pay the ransom money.

    Faulty declarations about illegal web content.

    In countries where software piracy is less popular, this technique is not as efficient for the cyber scams. Additionally, the Adware.ISTBar popup alert may falsely claim to be deriving from a police establishment as well as will certainly report having situated youngster porn or other prohibited data on the gadget.

    Adware.ISTBar popup alert may incorrectly assert to be obtaining from a law enforcement organization as well as will certainly report having situated child porn or other illegal information on the device. The alert will likewise include a requirement for the user to pay the ransom.

Technical details

File Info:

crc32: 12DC0AF2
md5: 100ae215dab51282ba28dbe1221d4994
name: 100AE215DAB51282BA28DBE1221D4994.mlw
sha1: 0e2abdbec2df46fb410035ef295fe8bd9161ab74
sha256: b1f7826497f06c5a310f6accd432d881ba20beeca52588ff709b874938de38ed
sha512: 707edc78eb3f8e20f44cc5f8167cdc68d77b9134a73670b87a253597536b0c39119d60cf53ad7ecba0b6afd772cc461876cc51bf8e6f0fee50891983c19bb1b3
ssdeep: 3072:0I6WE63PT9wTinir4d6iNPyZ6dXve3D1Iir:0Ik2JwTiiriqgdXveOE
type: PE32 executable (GUI) Intel 80386, for MS Windows, UPX compressed

Version Info:

LegalCopyright: Copyright (C) 2014
InternalName: Elis
FileVersion: 2, 14, 4, 14
CompanyName: Satinfo SL.
PrivateBuild:
LegalTrademarks:
Comments:
ProductName: Aplicacixf3n Elis
SpecialBuild:
ProductVersion: 2, 14, 4, 14
FileDescription: Utilidad Anti-Virus
OriginalFilename: Elis.EXE
Translation: 0x0c0a 0x04b0

Adware.ISTBar also known as:

GridinSoft Trojan.Ransom.Gen
Bkav W32.AIDetect.malware1
K7AntiVirus Trojan ( 0053af701 )
Elastic malicious (high confidence)
ALYac Gen:Variant.Razy.262397
Cylance Unsafe
Zillya Trojan.Blocker.Win32.25073
Sangfor Trojan.Win32.Save.a
Alibaba Ransom:Win32/Blocker.77d94e94
K7GW Trojan ( 0053af701 )
Cybereason malicious.5dab51
Symantec ML.Attribute.HighConfidence
APEX Malicious
Avast Win32:Malware-gen
Kaspersky Trojan-Ransom.Win32.Blocker.gfig
BitDefender Gen:Variant.Razy.262397
NANO-Antivirus Trojan.Win32.Blocker.dloavf
SUPERAntiSpyware Ransom.Blocker/Variant
MicroWorld-eScan Gen:Variant.Razy.262397
Ad-Aware Gen:Variant.Razy.262397
Sophos Mal/Generic-S
Comodo TrojWare.Win32.TrojanDownloader.IstBar.~L@f815z
BitDefenderTheta Gen:NN.ZexaF.34770.imLfayiqy4L
VIPRE Backdoor.Win32.Hupigon.eml (fs)
McAfee-GW-Edition BehavesLike.Win32.Dropper.cc
FireEye Generic.mg.100ae215dab51282
Emsisoft Gen:Variant.Razy.262397 (B)
SentinelOne Static AI – Malicious PE
Jiangmin Trojan/Blocker.ksv
Webroot W32.Malware.Gen
eGambit Unsafe.AI_Score_99%
Kingsoft Win32.Heur.KVM005.a.(kcloud)
Microsoft Trojan:Win32/Occamy.CB1
GData Gen:Variant.Razy.262397
AhnLab-V3 Malware/Win32.Generic.C733175
McAfee GenericRXAA-FA!100AE215DAB5
MAX malware (ai score=100)
VBA32 BScope.Trojan.DiskWriter
Malwarebytes Adware.ISTBar
Panda Trj/CI.A
Ikarus Trojan-Dropper.Agent
Fortinet W32/Blocker.GFIG!tr
AVG Win32:Malware-gen
Paloalto generic.ml
Qihoo-360 Win32/Ransom.Blocker.HwsBEpsA

How to remove Adware.ISTBar virus?

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 Adware.ISTBar 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:

Full version of GridinSoft

Full version of GridinSoft Anti-Malware

If the guide doesn’t help you to remove Adware.ISTBar 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/comparison

About the author

Robert Bailey

I'm Robert Bailey, a passionate Security Engineer with a deep fascination for all things related to malware, reverse engineering, and white hat ethical hacking.

As a white hat hacker, I firmly believe in the power of ethical hacking to bolster security measures. By identifying vulnerabilities and providing solutions, I contribute to the proactive defense of digital infrastructures.

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