MSIL/TrojanDropper.Small.S

What is MSIL/TrojanDropper.Small.S infection?

In this article you will discover about the definition of MSIL/TrojanDropper.Small.S and its negative effect on your computer. Such ransomware are a type of malware that is specified by on the internet frauds to require paying the ransom by a sufferer.

In the majority of the situations, MSIL/TrojanDropper.Small.S virus will instruct its sufferers to start funds transfer for the purpose of neutralizing the amendments that the Trojan infection has actually presented to the target’s tool.

MSIL/TrojanDropper.Small.S 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.
  • Ciphering the documents found on the sufferer’s hard disk drive — so the victim can no longer use the data;
  • Preventing regular accessibility to the target’s workstation;

MSIL/TrojanDropper.Small.S

The most normal networks through which MSIL/TrojanDropper.Small.S Trojans are infused are:

  • By methods of phishing emails;
  • As a repercussion of user ending up on a resource that holds a malicious software application;

As soon as the Trojan is successfully injected, it will either cipher the data on the victim’s PC or protect against the tool from operating in a correct fashion – while additionally placing a ransom note that points out the need for the victims to impact the settlement for the objective of decrypting the documents or bring back the data system back to the first problem. In many circumstances, the ransom money note will certainly come up when the client reboots the PC after the system has actually already been harmed.

MSIL/TrojanDropper.Small.S distribution channels.

In different corners of the globe, MSIL/TrojanDropper.Small.S expands by jumps as well as bounds. Nonetheless, the ransom notes as well as tricks of obtaining the ransom money quantity might vary relying on specific regional (local) setups. The ransom notes and also techniques of extorting the ransom money quantity might differ depending on certain regional (local) settings.

Ransomware injection

For example:

    Faulty informs concerning unlicensed software.

    In certain locations, the Trojans frequently wrongfully report having actually found some unlicensed applications enabled on the target’s device. The alert after that requires the individual to pay the ransom.

    Faulty declarations regarding prohibited material.

    In nations where software piracy is less popular, this technique is not as effective for the cyber fraudulences. Additionally, the MSIL/TrojanDropper.Small.S popup alert might wrongly declare to be originating from a police institution and will certainly report having situated youngster porn or various other illegal data on the gadget.

    MSIL/TrojanDropper.Small.S popup alert might incorrectly assert to be acquiring from a regulation enforcement organization as well as will report having located youngster porn or various other illegal information on the tool. The alert will in a similar way have a need for the customer to pay the ransom.

Technical details

File Info:

crc32: D1C9939Fmd5: 7dbe6b9420ddd5bb46ef6fe7d0c34490name: 7DBE6B9420DDD5BB46EF6FE7D0C34490.mlwsha1: 12956bd9e6ca823ac4ec6a26c44a85fba868cf0csha256: ef26663eee670a4dd55e19249a648a05087116f359bde7c655b394dc9da1fbb2sha512: 35781bdd98602ca4b44a8f7eb1d8ff68fcd108470b266c3ce2539136a0832d6e1a403c730fdc3c895885a8fb4d78520e4481b399abf3576246bdec3f7e0db2d7ssdeep: 3072:DG9DeX7DrMkhvRLHVnPfiQFNenWliIflZSipxPJsopfNZYyYVwM48qdg5U2+KeH:KWr5FjeWj8ipxJf9YeMWdkN+Xc5type: PE32 executable (GUI) Intel 80386 Mono/.Net assembly, for MS Windows

Version Info:

Translation: 0x0000 0x04b0LegalCopyright: Assembly Version: 0.0.0.0InternalName: foto.exeFileVersion: 0.0.0.0ProductVersion: 0.0.0.0FileDescription: OriginalFilename: foto.exe

MSIL/TrojanDropper.Small.S also known as:

GridinSoft Trojan.Ransom.Gen
K7AntiVirus Trojan ( 00217c381 )
Elastic malicious (high confidence)
DrWeb Trojan.Siggen3.14508
Cynet Malicious (score: 100)
ALYac Gen:Variant.Ursu.681990
Cylance Unsafe
Zillya Trojan.Keylogger.Win32.27
Sangfor Trojan.Win32.Save.a
CrowdStrike win/malicious_confidence_100% (D)
Alibaba Trojan:MSIL/Blocker.000daa92
K7GW Trojan ( 00217c381 )
Cybereason malicious.420ddd
ESET-NOD32 a variant of MSIL/TrojanDropper.Small.S
APEX Malicious
Avast Win32:Malware-gen
Kaspersky HEUR:Trojan-Ransom.MSIL.Blocker.gen
BitDefender Gen:Variant.Ursu.681990
NANO-Antivirus Trojan.Win32.Blocker.didwvd
MicroWorld-eScan Gen:Variant.Ursu.681990
Tencent Msil.Trojan.Blocker.Alte
Ad-Aware Gen:Variant.Ursu.681990
Sophos ML/PE-A
Comodo Malware@#5o7yral2fpmd
BitDefenderTheta Gen:NN.ZemsilF.34608.pq0@a0tp49o
VIPRE Trojan.Win32.Generic!BT
FireEye Generic.mg.7dbe6b9420ddd5bb
Emsisoft Gen:Variant.Ursu.681990 (B)
SentinelOne Static AI – Malicious PE
Avira TR/Dropper.Gen2
eGambit Unsafe.AI_Score_61%
Microsoft PWS:MSIL/Petun.A
Arcabit Trojan.Ursu.DA6806
AegisLab Trojan.Win32.Generic.lBQJ
GData Gen:Variant.Ursu.681990
McAfee Artemis!7DBE6B9420DD
MAX malware (ai score=99)
VBA32 TrojanSpy.MSIL.Keylogger
Malwarebytes Malware.Heuristic.1004
Panda Trj/GdSda.A
Rising Ransom.Blocker!8.12A (CLOUD)
Yandex TrojanSpy.KeyLogger!EoazelkM9QI
Ikarus Trojan-Dropper.MSIL.Small
Fortinet MSIL/Small.S!tr
AVG Win32:Malware-gen
Paloalto generic.ml
Qihoo-360 Win32/Ransom.Blocker.HgIASOYA

How to remove MSIL/TrojanDropper.Small.S 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

Run the setup file.

Run Setup.exe
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 Scanning

Click on “Clean Now”.

GridinSoft Anti-Malware Scan Result

Are Your Protected?

Full version of GridinSoft

If the guide doesn’t help you to remove MSIL/TrojanDropper.Small.S you can always ask me in the comments for getting help.

References

    About the author

    Robert Bailey

    Security engineer focused on malware behavior, removal workflows, and Windows hardening. Robert reviews threat articles for practical accuracy, checking detection names, symptoms, and cleanup steps before publication.

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