Trojan:Win32/Asacky.A!bit

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

What is Trojan:Win32/Asacky.A!bit infection?

In this post you will find regarding the meaning of Trojan:Win32/Asacky.A!bit and also its unfavorable impact on your computer. Such ransomware are a kind of malware that is elaborated by on the internet fraudulences to demand paying the ransom money by a target.

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In the majority of the instances, Trojan:Win32/Asacky.A!bit infection will instruct its sufferers to launch funds transfer for the purpose of neutralizing the amendments that the Trojan infection has actually introduced to the victim’s device.

Trojan:Win32/Asacky.A!bit 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.
  • 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.

  • 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: 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.
  • 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 papers found on the sufferer’s hard disk drive — so the sufferer can no more make use of the information;
  • Preventing routine accessibility 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.

Trojan:Win32/Asacky.A!bit

One of the most normal channels whereby Trojan:Win32/Asacky.A!bit are infused are:

  • By means of phishing emails;
  • As an effect of individual ending up on a source that organizes a destructive software;

As quickly as the Trojan is successfully infused, it will certainly either cipher the data on the target’s computer or protect against the tool from functioning in a proper fashion – while likewise positioning a ransom note that mentions the demand for the targets to effect the settlement for the function of decrypting the records or restoring the file system back to the initial condition. In the majority of instances, the ransom money note will certainly show up when the client reboots the COMPUTER after the system has currently been harmed.

Trojan:Win32/Asacky.A!bit circulation networks.

In different edges of the globe, Trojan:Win32/Asacky.A!bit expands by leaps and bounds. Nevertheless, the ransom money notes as well as methods of obtaining the ransom quantity might differ depending upon particular neighborhood (regional) settings. The ransom notes and also methods of extorting the ransom quantity might differ depending on certain regional (local) setups.

Ransomware injection

As an example:

    Faulty signals regarding unlicensed software application.

    In particular areas, the Trojans commonly wrongfully report having actually detected some unlicensed applications enabled on the sufferer’s tool. The alert then demands the customer to pay the ransom.

    Faulty statements regarding illegal content.

    In nations where software piracy is less prominent, this approach is not as reliable for the cyber fraudulences. Conversely, the Trojan:Win32/Asacky.A!bit popup alert may incorrectly declare to be stemming from a law enforcement establishment and also will report having located kid porn or various other unlawful information on the gadget.

    Trojan:Win32/Asacky.A!bit popup alert might incorrectly claim to be acquiring from a law enforcement establishment and also will report having located youngster porn or other illegal data on the tool. The alert will likewise include a need for the individual to pay the ransom.

Technical details

File Info:

crc32: 1AD40A0E
md5: 3d62e7b25652c327a34f67ed2b402ec4
name: 3D62E7B25652C327A34F67ED2B402EC4.mlw
sha1: 5a81d599743e78eb2c466a2040d7e7ffc9da7e16
sha256: 0ed5dd65982c03fadeefcc2efafa005a6edec9582217706f8de7c2d08ff0f1c2
sha512: 52f356a5cd4138a4836c26b2449a564749c0959fcbecba4972a1d3749514d5650c93cee4f20b18d970a0b1628659a53b431805051025df52ed2f69e891955f0f
ssdeep: 24576:bzTMxEPxmGpoLiD10vOtWICVTmAC1/MUgVlhs7B:vTMSniFtpGMUgi
type: PE32 executable (GUI) Intel 80386, for MS Windows, PECompact2 compressed

Version Info:

0: [No Data]

Trojan:Win32/Asacky.A!bit also known as:

GridinSoftTrojan.Ransom.Gen
BkavW32.AIDetect.malware2
Elasticmalicious (high confidence)
DrWebTrojan.Click3.23828
CynetMalicious (score: 100)
ALYacGen:Variant.Bulz.137969
CylanceUnsafe
ZillyaTrojan.Delf.Win32.82593
SangforTrojan.Win32.Save.a
CrowdStrikewin/malicious_confidence_100% (D)
AlibabaTrojan:Win32/Asacky.6b14dbb1
K7GWTrojan ( 004f34121 )
K7AntiVirusTrojan ( 004f34121 )
CyrenW32/S-78d4cd1d!Eldorado
SymantecML.Attribute.HighConfidence
ESET-NOD32a variant of Win32/Delf.TJJ
APEXMalicious
AvastFileRepMalware
KasperskyHEUR:Trojan.Win32.Generic
BitDefenderGen:Variant.Bulz.137969
NANO-AntivirusTrojan.Win32.Delf.emcvwd
MicroWorld-eScanGen:Variant.Bulz.137969
TencentMalware.Win32.Gencirc.10b2fdb7
Ad-AwareGen:Variant.Bulz.137969
SophosML/PE-A
F-SecureHeuristic.HEUR/AGEN.1112417
BitDefenderThetaGen:NN.ZelphiF.34608.ajXfae8tAXfb
VIPRETrojan.Win32.Generic!BT
McAfee-GW-EditionBehavesLike.Win32.VirRansom.tc
FireEyeGeneric.mg.3d62e7b25652c327
EmsisoftGen:Variant.Bulz.137969 (B)
SentinelOneStatic AI – Malicious PE
JiangminTrojan.Generic.atyhq
AviraHEUR/AGEN.1112417
eGambitUnsafe.AI_Score_98%
KingsoftWin32.Troj.Undef.(kcloud)
MicrosoftTrojan:Win32/Asacky.A!bit
ArcabitTrojan.Bulz.D21AF1
AegisLabTrojan.Win32.Generic.4!c
ZoneAlarmHEUR:Trojan.Win32.Generic
GDataGen:Variant.Bulz.137969
AhnLab-V3Trojan/Win32.Generic.C1769050
Acronissuspicious
McAfeeArtemis!3D62E7B25652
MAXmalware (ai score=100)
VBA32BScope.Trojan.Reconyc
MalwarebytesMalware.Heuristic.1001
PandaTrj/Genetic.gen
RisingTrojan.Asacky!8.A0DA (CLOUD)
YandexTrojan.GenAsa!mhW2iowtGhY
IkarusTrojan.Win32.Regrun
FortinetW32/Delf.TJJ!tr
AVGFileRepMalware
Paloaltogeneric.ml
Qihoo-360Win32/Trojan.Generic.HgIASOcA

How to remove Trojan:Win32/Asacky.A!bit 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 Trojan:Win32/Asacky.A!bit 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:Win32/Asacky.A!bit 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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