Categories: Trojan

How to remove “Trojan.Downloader.Small.AAKR (B)”?

The Trojan.Downloader.Small.AAKR (B) 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.

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What Trojan.Downloader.Small.AAKR (B) virus can do?

  • Yara rule detections observed from a process memory dump/dropped files/CAPE
  • Dynamic (imported) function loading detected
  • Performs HTTP requests potentially not found in PCAP.
  • HTTPS urls from behavior.
  • Enumerates running processes
  • Expresses interest in specific running processes
  • Repeatedly searches for a not-found process, may want to run with startbrowser=1 option
  • The binary contains an unknown PE section name indicative of packing
  • The binary likely contains encrypted or compressed data.
  • The executable is compressed using UPX
  • Authenticode signature is invalid
  • A process attempted to delay the analysis task by a long amount of time.
  • Tries to unhook or modify Windows functions monitored by Cuckoo
  • Created a process from a suspicious location
  • Installs itself for autorun at Windows startup
  • Attempts to modify proxy settings

How to determine Trojan.Downloader.Small.AAKR (B)?


File Info:

name: 74F821921FF9D23777E9.mlwpath: /opt/CAPEv2/storage/binaries/7c74a67762917a6aa45e79711d1af5a2e02ed2297b56c35b92eae7f7efd62fb8crc32: 96AEF2B5md5: 74f821921ff9d23777e91926240eb2bdsha1: cd34c3b961be02fb30e7fad36d5bf8212eca7714sha256: 7c74a67762917a6aa45e79711d1af5a2e02ed2297b56c35b92eae7f7efd62fb8sha512: 928fdf1f360ca4f3e17cfe92a18b606f6721735f3be00628b951e43adc44350beb269bab50ca990100fa9dc0c9ee12630ce11370d4708728afab391942d8bbfcssdeep: 1536:aeJUUTeH12/bx09TeH12/bx09TeH12/bx03mI27/Rq45PjmTTYVLY5q:ageV2+heV2+heV2+3J2U4VmTT1qtype: PE32 executable (GUI) Intel 80386, for MS Windowstlsh: T124E3F159E8DEA362ED537DF7D1DD948002B71689AB112800A5A77131342EF73E7F828Bsha3_384: 1d1ee73927886283d6b28641766effce3bd9739f0eac6be070d166701c9afbe2b9486375647e1ae18fa09cfe88ccc5b7ep_bytes: 60be001042008dbe0000feff5783cdfftimestamp: 2008-02-01 19:28:23

Version Info:

0: [No Data]

Trojan.Downloader.Small.AAKR (B) also known as:

Bkav W32.AIDetect.malware2
Elastic malicious (high confidence)
DrWeb Trojan.DownLoader.46268
MicroWorld-eScan Trojan.Downloader.Small.AAKR
FireEye Generic.mg.74f821921ff9d237
CAT-QuickHeal Backdoor.Agent.8448
ALYac Trojan.Downloader.Small.AAKR
Cylance Unsafe
VIPRE Worm.Win32.Socks.bt (fs)
Sangfor Trojan.Win32.Save.a
CrowdStrike win/malicious_confidence_70% (D)
K7GW Riskware ( 0040eff71 )
K7AntiVirus Riskware ( 0040eff71 )
BitDefenderTheta AI:Packer.882C81AA1B
Cyren W32/Socks.A.gen!Eldorado
Symantec Downloader
ESET-NOD32 Win32/TrojanDownloader.Agent.NVF
TrendMicro-HouseCall WORM_MANDA.TEO
Cynet Malicious (score: 100)
Kaspersky Worm.Win32.Socks.hq
BitDefender Trojan.Downloader.Small.AAKR
NANO-Antivirus Trojan.Win32.Socks.brqlwc
Avast Win32:Injecter-AU [Trj]
Tencent Malware.Win32.Gencirc.10b716f2
Emsisoft Trojan.Downloader.Small.AAKR (B)
Comodo TrojWare.Win32.TrojanDownloader.Agent.NVF@268q
Baidu Win32.Trojan-PSW.Agent.e
Zillya Worm.Socks.Win32.149
TrendMicro WORM_MANDA.TEO
McAfee-GW-Edition BehavesLike.Win32.Generic.cc
Sophos ML/PE-A + Mal/Koceg-A
Ikarus Trojan-Downloader.Win32.Small
Jiangmin Worm/Socks.ccm
Avira TR/Crypt.XDR.Gen
Antiy-AVL Trojan/Generic.ASMalwS.C95850
Microsoft Trojan:Win32/Sabsik.FL.B!ml
ZoneAlarm Worm.Win32.Socks.hq
GData Trojan.Downloader.Small.AAKR
AhnLab-V3 Worm/Win32.Socks.R64667
McAfee GenericRXAA-AA!74F821921FF9
MAX malware (ai score=86)
VBA32 BScope.Trojan.Downloader
Malwarebytes Malware.AI.2845834489
APEX Malicious
Rising Backdoor.Koceg!8.877 (RDMK:cmRtazpH0iER442FDTkEEE87rYho)
Yandex Trojan.GenAsa!Wz2P3DpdGSY
SentinelOne Static AI – Malicious PE
Fortinet W32/MANDA.TEO!worm
AVG Win32:Injecter-AU [Trj]
Cybereason malicious.21ff9d
Panda Trj/Downloader.SIA

How to remove Trojan.Downloader.Small.AAKR (B)?

  • 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.

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