Categories: Trojan

What is “Trojan-Downloader.Win32.Alien.frf”?

The Trojan-Downloader.Win32.Alien.frf is considered dangerous by lots of security experts. When this infection is active, you may notice unwanted processes in Task Manager list. In this case, it is adviced to scan your computer with GridinSoft Anti-Malware.

Gridinsoft Anti-Malware

Removing PC viruses manually may take hours and may damage your PC in the process. We recommend using GridinSoft Anti-Malware for virus removal. Allows to complete scan and cure your PC during the trial period.
6-day free trial available.

What Trojan-Downloader.Win32.Alien.frf virus can do?

  • SetUnhandledExceptionFilter detected (possible anti-debug)
  • Executed a command line with /C or /R argument to terminate command shell on completion which can be used to hide execution
  • Yara rule detections observed from a process memory dump/dropped files/CAPE
  • Guard pages use detected – possible anti-debugging.
  • Dynamic (imported) function loading detected
  • Enumerates running processes
  • Expresses interest in specific running processes
  • Reads data out of its own binary image
  • A process created a hidden window
  • Executed a very long command line or script command which may be indicative of chained commands or obfuscation
  • Drops a binary and executes it
  • The binary likely contains encrypted or compressed data.
  • Uses Windows utilities to enumerate running processes
  • Authenticode signature is invalid
  • A ping command was executed with the -n argument possibly to delay analysis
  • Uses Windows utilities for basic functionality
  • Created a process from a suspicious location
  • Installs itself for autorun at Windows startup
  • Forces a created process to be the child of an unrelated process
  • Detects the presence of Windows Defender AV emulator via files
  • Anomalous binary characteristics
  • Uses suspicious command line tools or Windows utilities

How to determine Trojan-Downloader.Win32.Alien.frf?


File Info:

name: C52104CA0DC4EE132E2B.mlwpath: /opt/CAPEv2/storage/binaries/a6631ee276352e38000a9c90b0a3fb7b58fae1167e60bb61514e2a1b1995adf8crc32: 0A53FCB3md5: c52104ca0dc4ee132e2b5621c8e4b0absha1: d97b408dff81bf81f4626d063cba3e96115b3e99sha256: a6631ee276352e38000a9c90b0a3fb7b58fae1167e60bb61514e2a1b1995adf8sha512: 7cc53c12d127c774489503f1dae3feedf9b8a5c225bc7b1f23b596d057d6781493dea2e5a9f482f6b4203501eb8662e87c33dd0db91b132060c3ce9a6a0a12a6ssdeep: 24576:UQ8wx/aR/Hw89VvouxWtzOns/c6icQ10lPjfyab:UQW/Hw89VAuItzOsnLRfyatype: PE32 executable (GUI) Intel 80386, for MS Windowstlsh: T15F45123799D92D62DA6117B804B5DE37C638BDA4091C8B9E16DDBC8B78D70806A7033Fsha3_384: 442f7b633d2a3d0ba2927c7dccbb8faebf9dfe921a5ab24b39e0f46f4b5f5d22904a46be8eb12e5e8caf6e49ff1a6cbdep_bytes: e8070b0000e905000000cccccccccc6atimestamp: 2013-08-22 04:01:48

Version Info:

CompanyName: Tqocdrajb LwzfjjnuxiFileDescription: Bvm24 Emvhfub ReqkxochpyFileVersion: 3.50.6274.87091 (saluzlj_uzy.383482-9047)InternalName: OgtlqwtLegalCopyright: © Tqocdrajb Lwzfjjnuxi. Svv Pkqled Vnipftdm.OriginalFilename: DUIXLQF.EXE .SGRPrivateBuild: Enljb 0, 5066ProductName: Ygtklsuz MgbzyzxkProductVersion: 3.50.6274.87091Translation: 0x0409 0x04b0

Trojan-Downloader.Win32.Alien.frf also known as:

FireEye Generic.mg.c52104ca0dc4ee13
McAfee Artemis!C52104CA0DC4
Cylance Unsafe
Cybereason malicious.dff81b
Symantec ML.Attribute.HighConfidence
Elastic malicious (high confidence)
ESET-NOD32 a variant of Win32/Packed.CAB.CA suspicious
APEX Malicious
Kaspersky Trojan-Downloader.Win32.Alien.frf
Avast Win32:Malware-gen
Tencent Malware.Win32.Gencirc.10d03a84
Sophos Generic ML PUA (PUA)
McAfee-GW-Edition BehavesLike.Win32.BadFile.tc
SentinelOne Static AI – Suspicious PE
Webroot W32.Malware.Gen
Microsoft Trojan:Win32/Sabsik.FL.B!ml
Malwarebytes Trojan.Agent.HDC.Generic
MaxSecure Trojan.Malware.300983.susgen
Fortinet Riskware/Application
AVG Win32:Malware-gen
CrowdStrike win/malicious_confidence_70% (W)

How to remove Trojan-Downloader.Win32.Alien.frf?

  • Download and install GridinSoft Anti-Malware.
  • Open GridinSoft Anti-Malware and perform a “Standard scan“.
  • Move to quarantine” all items.
  • Open “Tools” tab – Press “Reset Browser Settings“.
  • Select proper browser and options – Click “Reset”.
  • Restart your computer.
Paul Valéry

I'm a cyber security analyst and data science expert with 5+ years of experience with security software contractors.

Recent Posts

MSIL/GenKryptik.GXIZ information

The MSIL/GenKryptik.GXIZ is considered dangerous by lots of security experts. When this infection is active,…

2 weeks ago

Malware.AI.2789448175 (file analysis)

The Malware.AI.2789448175 is considered dangerous by lots of security experts. When this infection is active,…

2 weeks ago

Jalapeno.1878 removal instruction

The Jalapeno.1878 is considered dangerous by lots of security experts. When this infection is active,…

2 weeks ago

What is “Trojan.Heur3.LPT.YmKfaKBcBekib”?

The Trojan.Heur3.LPT.YmKfaKBcBekib is considered dangerous by lots of security experts. When this infection is active,…

2 weeks ago

How to remove “Worm.Win32.Vobfus.exmt”?

The Worm.Win32.Vobfus.exmt is considered dangerous by lots of security experts. When this infection is active,…

2 weeks ago

About “TrojanDownloader:Win32/Beebone.JO” infection

The TrojanDownloader:Win32/Beebone.JO is considered dangerous by lots of security experts. When this infection is active,…

2 weeks ago